feat: Passwordless cross-device authentication

- Arkitektur: docs/auth/passwordless-architecture.md
- Backend: iom/quixzoom-auth-service/ (FastAPI + Redis)
- Webb: quixzoom-market-pages/se/login/ (QR-kod + polling)
- App: iom/quixzoom-app/src/features/auth/ (push + deep links)

Flöde: QR-kod → app-godkännande → webb-inloggad

landvex/node_modules/underscore/cjs/_baseCreate.js

@@ -0,0 +1,20 @@
+var isObject = require('./isObject.js');
+var _setup = require('./_setup.js');
+
+// Create a naked function reference for surrogate-prototype-swapping.
+function ctor() {
+  return function(){};
+}
+
+// An internal function for creating a new object that inherits from another.
+function baseCreate(prototype) {
+  if (!isObject(prototype)) return {};
+  if (_setup.nativeCreate) return _setup.nativeCreate(prototype);
+  var Ctor = ctor();
+  Ctor.prototype = prototype;
+  var result = new Ctor;
+  Ctor.prototype = null;
+  return result;
+}
+
+module.exports = baseCreate;

landvex/node_modules/underscore/cjs/_baseIteratee.js

@@ -0,0 +1,19 @@
+var identity = require('./identity.js');
+var isFunction = require('./isFunction.js');
+var isObject = require('./isObject.js');
+var isArray = require('./isArray.js');
+var matcher = require('./matcher.js');
+var property = require('./property.js');
+var _optimizeCb = require('./_optimizeCb.js');
+
+// An internal function to generate callbacks that can be applied to each
+// element in a collection, returning the desired result — either `_.identity`,
+// an arbitrary callback, a property matcher, or a property accessor.
+function baseIteratee(value, context, argCount) {
+  if (value == null) return identity;
+  if (isFunction(value)) return _optimizeCb(value, context, argCount);
+  if (isObject(value) && !isArray(value)) return matcher(value);
+  return property(value);
+}
+
+module.exports = baseIteratee;

landvex/node_modules/underscore/cjs/_cb.js

@@ -0,0 +1,12 @@
+var underscore = require('./underscore.js');
+var _baseIteratee = require('./_baseIteratee.js');
+var iteratee = require('./iteratee.js');
+
+// The function we call internally to generate a callback. It invokes
+// `_.iteratee` if overridden, otherwise `baseIteratee`.
+function cb(value, context, argCount) {
+  if (underscore.iteratee !== iteratee) return underscore.iteratee(value, context);
+  return _baseIteratee(value, context, argCount);
+}
+
+module.exports = cb;

landvex/node_modules/underscore/cjs/_chainResult.js

@@ -0,0 +1,8 @@
+var underscore = require('./underscore.js');
+
+// Helper function to continue chaining intermediate results.
+function chainResult(instance, obj) {
+  return instance._chain ? underscore(obj).chain() : obj;
+}
+
+module.exports = chainResult;

landvex/node_modules/underscore/cjs/_collectNonEnumProps.js

@@ -0,0 +1,42 @@
+var _setup = require('./_setup.js');
+var isFunction = require('./isFunction.js');
+var _has = require('./_has.js');
+
+// Internal helper to create a simple lookup structure.
+// `collectNonEnumProps` used to depend on `_.contains`, but this led to
+// circular imports. `emulatedSet` is a one-off solution that only works for
+// arrays of strings.
+function emulatedSet(keys) {
+  var hash = {};
+  for (var l = keys.length, i = 0; i < l; ++i) hash[keys[i]] = true;
+  return {
+    contains: function(key) { return hash[key] === true; },
+    push: function(key) {
+      hash[key] = true;
+      return keys.push(key);
+    }
+  };
+}
+
+// Internal helper. Checks `keys` for the presence of keys in IE < 9 that won't
+// be iterated by `for key in ...` and thus missed. Extends `keys` in place if
+// needed.
+function collectNonEnumProps(obj, keys) {
+  keys = emulatedSet(keys);
+  var nonEnumIdx = _setup.nonEnumerableProps.length;
+  var constructor = obj.constructor;
+  var proto = (isFunction(constructor) && constructor.prototype) || _setup.ObjProto;
+
+  // Constructor is a special case.
+  var prop = 'constructor';
+  if (_has(obj, prop) && !keys.contains(prop)) keys.push(prop);
+
+  while (nonEnumIdx--) {
+    prop = _setup.nonEnumerableProps[nonEnumIdx];
+    if (prop in obj && obj[prop] !== proto[prop] && !keys.contains(prop)) {
+      keys.push(prop);
+    }
+  }
+}
+
+module.exports = collectNonEnumProps;

landvex/node_modules/underscore/cjs/_createAssigner.js

@@ -0,0 +1,20 @@
+// An internal function for creating assigner functions.
+function createAssigner(keysFunc, defaults) {
+  return function(obj) {
+    var length = arguments.length;
+    if (defaults) obj = Object(obj);
+    if (length < 2 || obj == null) return obj;
+    for (var index = 1; index < length; index++) {
+      var source = arguments[index],
+          keys = keysFunc(source),
+          l = keys.length;
+      for (var i = 0; i < l; i++) {
+        var key = keys[i];
+        if (!defaults || obj[key] === void 0) obj[key] = source[key];
+      }
+    }
+    return obj;
+  };
+}
+
+module.exports = createAssigner;

landvex/node_modules/underscore/cjs/_createEscaper.js

@@ -0,0 +1,19 @@
+var keys = require('./keys.js');
+
+// Internal helper to generate functions for escaping and unescaping strings
+// to/from HTML interpolation.
+function createEscaper(map) {
+  var escaper = function(match) {
+    return map[match];
+  };
+  // Regexes for identifying a key that needs to be escaped.
+  var source = '(?:' + keys(map).join('|') + ')';
+  var testRegexp = RegExp(source);
+  var replaceRegexp = RegExp(source, 'g');
+  return function(string) {
+    string = string == null ? '' : '' + string;
+    return testRegexp.test(string) ? string.replace(replaceRegexp, escaper) : string;
+  };
+}
+
+module.exports = createEscaper;

landvex/node_modules/underscore/cjs/_createIndexFinder.js

@@ -0,0 +1,30 @@
+var _getLength = require('./_getLength.js');
+var _setup = require('./_setup.js');
+var _isNaN = require('./isNaN.js');
+
+// Internal function to generate the `_.indexOf` and `_.lastIndexOf` functions.
+function createIndexFinder(dir, predicateFind, sortedIndex) {
+  return function(array, item, idx) {
+    var i = 0, length = _getLength(array);
+    if (typeof idx == 'number') {
+      if (dir > 0) {
+        i = idx >= 0 ? idx : Math.max(idx + length, i);
+      } else {
+        length = idx >= 0 ? Math.min(idx + 1, length) : idx + length + 1;
+      }
+    } else if (sortedIndex && idx && length) {
+      idx = sortedIndex(array, item);
+      return array[idx] === item ? idx : -1;
+    }
+    if (item !== item) {
+      idx = predicateFind(_setup.slice.call(array, i, length), _isNaN);
+      return idx >= 0 ? idx + i : -1;
+    }
+    for (idx = dir > 0 ? i : length - 1; idx >= 0 && idx < length; idx += dir) {
+      if (array[idx] === item) return idx;
+    }
+    return -1;
+  };
+}
+
+module.exports = createIndexFinder;

landvex/node_modules/underscore/cjs/_createPredicateIndexFinder.js

@@ -0,0 +1,17 @@
+var _cb = require('./_cb.js');
+var _getLength = require('./_getLength.js');
+
+// Internal function to generate `_.findIndex` and `_.findLastIndex`.
+function createPredicateIndexFinder(dir) {
+  return function(array, predicate, context) {
+    predicate = _cb(predicate, context);
+    var length = _getLength(array);
+    var index = dir > 0 ? 0 : length - 1;
+    for (; index >= 0 && index < length; index += dir) {
+      if (predicate(array[index], index, array)) return index;
+    }
+    return -1;
+  };
+}
+
+module.exports = createPredicateIndexFinder;

landvex/node_modules/underscore/cjs/_createReduce.js

@@ -0,0 +1,30 @@
+var _isArrayLike = require('./_isArrayLike.js');
+var keys = require('./keys.js');
+var _optimizeCb = require('./_optimizeCb.js');
+
+// Internal helper to create a reducing function, iterating left or right.
+function createReduce(dir) {
+  // Wrap code that reassigns argument variables in a separate function than
+  // the one that accesses `arguments.length` to avoid a perf hit. (#1991)
+  var reducer = function(obj, iteratee, memo, initial) {
+    var _keys = !_isArrayLike(obj) && keys(obj),
+        length = (_keys || obj).length,
+        index = dir > 0 ? 0 : length - 1;
+    if (!initial) {
+      memo = obj[_keys ? _keys[index] : index];
+      index += dir;
+    }
+    for (; index >= 0 && index < length; index += dir) {
+      var currentKey = _keys ? _keys[index] : index;
+      memo = iteratee(memo, obj[currentKey], currentKey, obj);
+    }
+    return memo;
+  };
+
+  return function(obj, iteratee, memo, context) {
+    var initial = arguments.length >= 3;
+    return reducer(obj, _optimizeCb(iteratee, context, 4), memo, initial);
+  };
+}
+
+module.exports = createReduce;

landvex/node_modules/underscore/cjs/_createSizePropertyCheck.js

@@ -0,0 +1,11 @@
+var _setup = require('./_setup.js');
+
+// Common internal logic for `isArrayLike` and `isBufferLike`.
+function createSizePropertyCheck(getSizeProperty) {
+  return function(collection) {
+    var sizeProperty = getSizeProperty(collection);
+    return typeof sizeProperty == 'number' && sizeProperty >= 0 && sizeProperty <= _setup.MAX_ARRAY_INDEX;
+  }
+}
+
+module.exports = createSizePropertyCheck;

landvex/node_modules/underscore/cjs/_deepGet.js

@@ -0,0 +1,11 @@
+// Internal function to obtain a nested property in `obj` along `path`.
+function deepGet(obj, path) {
+  var length = path.length;
+  for (var i = 0; i < length; i++) {
+    if (obj == null) return void 0;
+    obj = obj[path[i]];
+  }
+  return length ? obj : void 0;
+}
+
+module.exports = deepGet;

landvex/node_modules/underscore/cjs/_escapeMap.js

@@ -0,0 +1,11 @@
+// Internal list of HTML entities for escaping.
+var escapeMap = {
+  '&': '&',
+  '<': '&lt;',
+  '>': '&gt;',
+  '"': '&quot;',
+  "'": '&#x27;',
+  '`': '&#x60;'
+};
+
+module.exports = escapeMap;

landvex/node_modules/underscore/cjs/_executeBound.js

@@ -0,0 +1,15 @@
+var _baseCreate = require('./_baseCreate.js');
+var isObject = require('./isObject.js');
+
+// Internal function to execute `sourceFunc` bound to `context` with optional
+// `args`. Determines whether to execute a function as a constructor or as a
+// normal function.
+function executeBound(sourceFunc, boundFunc, context, callingContext, args) {
+  if (!(callingContext instanceof boundFunc)) return sourceFunc.apply(context, args);
+  var self = _baseCreate(sourceFunc.prototype);
+  var result = sourceFunc.apply(self, args);
+  if (isObject(result)) return result;
+  return self;
+}
+
+module.exports = executeBound;

landvex/node_modules/underscore/cjs/_flatten.js

@@ -0,0 +1,33 @@
+var _getLength = require('./_getLength.js');
+var _isArrayLike = require('./_isArrayLike.js');
+var isArray = require('./isArray.js');
+var isArguments = require('./isArguments.js');
+
+// Internal implementation of a recursive `flatten` function.
+function flatten(input, depth, strict, output) {
+  output = output || [];
+  if (!depth && depth !== 0) {
+    depth = Infinity;
+  } else if (depth <= 0) {
+    return output.concat(input);
+  }
+  var idx = output.length;
+  for (var i = 0, length = _getLength(input); i < length; i++) {
+    var value = input[i];
+    if (_isArrayLike(value) && (isArray(value) || isArguments(value))) {
+      // Flatten current level of array or arguments object.
+      if (depth > 1) {
+        flatten(value, depth - 1, strict, output);
+        idx = output.length;
+      } else {
+        var j = 0, len = value.length;
+        while (j < len) output[idx++] = value[j++];
+      }
+    } else if (!strict) {
+      output[idx++] = value;
+    }
+  }
+  return output;
+}
+
+module.exports = flatten;

landvex/node_modules/underscore/cjs/_getByteLength.js

@@ -0,0 +1,6 @@
+var _shallowProperty = require('./_shallowProperty.js');
+
+// Internal helper to obtain the `byteLength` property of an object.
+var getByteLength = _shallowProperty('byteLength');
+
+module.exports = getByteLength;

landvex/node_modules/underscore/cjs/_getLength.js

@@ -0,0 +1,6 @@
+var _shallowProperty = require('./_shallowProperty.js');
+
+// Internal helper to obtain the `length` property of an object.
+var getLength = _shallowProperty('length');
+
+module.exports = getLength;

landvex/node_modules/underscore/cjs/_group.js

@@ -0,0 +1,17 @@
+var _cb = require('./_cb.js');
+var each = require('./each.js');
+
+// An internal function used for aggregate "group by" operations.
+function group(behavior, partition) {
+  return function(obj, iteratee, context) {
+    var result = partition ? [[], []] : {};
+    iteratee = _cb(iteratee, context);
+    each(obj, function(value, index) {
+      var key = iteratee(value, index, obj);
+      behavior(result, value, key);
+    });
+    return result;
+  };
+}
+
+module.exports = group;

landvex/node_modules/underscore/cjs/_has.js

@@ -0,0 +1,8 @@
+var _setup = require('./_setup.js');
+
+// Internal function to check whether `key` is an own property name of `obj`.
+function has(obj, key) {
+  return obj != null && _setup.hasOwnProperty.call(obj, key);
+}
+
+module.exports = has;

landvex/node_modules/underscore/cjs/_hasObjectTag.js

@@ -0,0 +1,5 @@
+var _tagTester = require('./_tagTester.js');
+
+var hasObjectTag = _tagTester('Object');
+
+module.exports = hasObjectTag;

landvex/node_modules/underscore/cjs/_isArrayLike.js

@@ -0,0 +1,10 @@
+var _createSizePropertyCheck = require('./_createSizePropertyCheck.js');
+var _getLength = require('./_getLength.js');
+
+// Internal helper for collection methods to determine whether a collection
+// should be iterated as an array or as an object.
+// Related: https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength
+// Avoids a very nasty iOS 8 JIT bug on ARM-64. #2094
+var isArrayLike = _createSizePropertyCheck(_getLength);
+
+module.exports = isArrayLike;

landvex/node_modules/underscore/cjs/_isBufferLike.js

@@ -0,0 +1,8 @@
+var _createSizePropertyCheck = require('./_createSizePropertyCheck.js');
+var _getByteLength = require('./_getByteLength.js');
+
+// Internal helper to determine whether we should spend extensive checks against
+// `ArrayBuffer` et al.
+var isBufferLike = _createSizePropertyCheck(_getByteLength);
+
+module.exports = isBufferLike;

landvex/node_modules/underscore/cjs/_keyInObj.js

@@ -0,0 +1,7 @@
+// Internal `_.pick` helper function to determine whether `key` is an enumerable
+// property name of `obj`.
+function keyInObj(value, key, obj) {
+  return key in obj;
+}
+
+module.exports = keyInObj;

landvex/node_modules/underscore/cjs/_methodFingerprint.js

@@ -0,0 +1,44 @@
+Object.defineProperty(exports, '__esModule', { value: true });
+
+var _getLength = require('./_getLength.js');
+var isFunction = require('./isFunction.js');
+var allKeys = require('./allKeys.js');
+
+// Since the regular `Object.prototype.toString` type tests don't work for
+// some types in IE 11, we use a fingerprinting heuristic instead, based
+// on the methods. It's not great, but it's the best we got.
+// The fingerprint method lists are defined below.
+function ie11fingerprint(methods) {
+  var length = _getLength(methods);
+  return function(obj) {
+    if (obj == null) return false;
+    // `Map`, `WeakMap` and `Set` have no enumerable keys.
+    var keys = allKeys(obj);
+    if (_getLength(keys)) return false;
+    for (var i = 0; i < length; i++) {
+      if (!isFunction(obj[methods[i]])) return false;
+    }
+    // If we are testing against `WeakMap`, we need to ensure that
+    // `obj` doesn't have a `forEach` method in order to distinguish
+    // it from a regular `Map`.
+    return methods !== weakMapMethods || !isFunction(obj[forEachName]);
+  };
+}
+
+// In the interest of compact minification, we write
+// each string in the fingerprints only once.
+var forEachName = 'forEach',
+    hasName = 'has',
+    commonInit = ['clear', 'delete'],
+    mapTail = ['get', hasName, 'set'];
+
+// `Map`, `WeakMap` and `Set` each have slightly different
+// combinations of the above sublists.
+var mapMethods = commonInit.concat(forEachName, mapTail),
+    weakMapMethods = commonInit.concat(mapTail),
+    setMethods = ['add'].concat(commonInit, forEachName, hasName);
+
+exports.ie11fingerprint = ie11fingerprint;
+exports.mapMethods = mapMethods;
+exports.setMethods = setMethods;
+exports.weakMapMethods = weakMapMethods;

landvex/node_modules/underscore/cjs/_optimizeCb.js

@@ -0,0 +1,23 @@
+// Internal function that returns an efficient (for current engines) version
+// of the passed-in callback, to be repeatedly applied in other Underscore
+// functions.
+function optimizeCb(func, context, argCount) {
+  if (context === void 0) return func;
+  switch (argCount == null ? 3 : argCount) {
+    case 1: return function(value) {
+      return func.call(context, value);
+    };
+    // The 2-argument case is omitted because we’re not using it.
+    case 3: return function(value, index, collection) {
+      return func.call(context, value, index, collection);
+    };
+    case 4: return function(accumulator, value, index, collection) {
+      return func.call(context, accumulator, value, index, collection);
+    };
+  }
+  return function() {
+    return func.apply(context, arguments);
+  };
+}
+
+module.exports = optimizeCb;

landvex/node_modules/underscore/cjs/_setup.js

@@ -0,0 +1,66 @@
+Object.defineProperty(exports, '__esModule', { value: true });
+
+// Current version.
+var VERSION = '1.13.8';
+
+// Establish the root object, `window` (`self`) in the browser, `global`
+// on the server, or `this` in some virtual machines. We use `self`
+// instead of `window` for `WebWorker` support.
+var root = (typeof self == 'object' && self.self === self && self) ||
+          (typeof global == 'object' && global.global === global && global) ||
+          Function('return this')() ||
+          {};
+
+// Save bytes in the minified (but not gzipped) version:
+var ArrayProto = Array.prototype, ObjProto = Object.prototype;
+var SymbolProto = typeof Symbol !== 'undefined' ? Symbol.prototype : null;
+
+// Create quick reference variables for speed access to core prototypes.
+var push = ArrayProto.push,
+    slice = ArrayProto.slice,
+    toString = ObjProto.toString,
+    hasOwnProperty = ObjProto.hasOwnProperty;
+
+// Modern feature detection.
+var supportsArrayBuffer = typeof ArrayBuffer !== 'undefined',
+    supportsDataView = typeof DataView !== 'undefined';
+
+// All **ECMAScript 5+** native function implementations that we hope to use
+// are declared here.
+var nativeIsArray = Array.isArray,
+    nativeKeys = Object.keys,
+    nativeCreate = Object.create,
+    nativeIsView = supportsArrayBuffer && ArrayBuffer.isView;
+
+// Create references to these builtin functions because we override them.
+var _isNaN = isNaN,
+    _isFinite = isFinite;
+
+// Keys in IE < 9 that won't be iterated by `for key in ...` and thus missed.
+var hasEnumBug = !{toString: null}.propertyIsEnumerable('toString');
+var nonEnumerableProps = ['valueOf', 'isPrototypeOf', 'toString',
+  'propertyIsEnumerable', 'hasOwnProperty', 'toLocaleString'];
+
+// The largest integer that can be represented exactly.
+var MAX_ARRAY_INDEX = Math.pow(2, 53) - 1;
+
+exports.ArrayProto = ArrayProto;
+exports.MAX_ARRAY_INDEX = MAX_ARRAY_INDEX;
+exports.ObjProto = ObjProto;
+exports.SymbolProto = SymbolProto;
+exports.VERSION = VERSION;
+exports._isFinite = _isFinite;
+exports._isNaN = _isNaN;
+exports.hasEnumBug = hasEnumBug;
+exports.hasOwnProperty = hasOwnProperty;
+exports.nativeCreate = nativeCreate;
+exports.nativeIsArray = nativeIsArray;
+exports.nativeIsView = nativeIsView;
+exports.nativeKeys = nativeKeys;
+exports.nonEnumerableProps = nonEnumerableProps;
+exports.push = push;
+exports.root = root;
+exports.slice = slice;
+exports.supportsArrayBuffer = supportsArrayBuffer;
+exports.supportsDataView = supportsDataView;
+exports.toString = toString;

landvex/node_modules/underscore/cjs/_shallowProperty.js

@@ -0,0 +1,8 @@
+// Internal helper to generate a function to obtain property `key` from `obj`.
+function shallowProperty(key) {
+  return function(obj) {
+    return obj == null ? void 0 : obj[key];
+  };
+}
+
+module.exports = shallowProperty;

landvex/node_modules/underscore/cjs/_stringTagBug.js

@@ -0,0 +1,18 @@
+Object.defineProperty(exports, '__esModule', { value: true });
+
+var _setup = require('./_setup.js');
+var _hasObjectTag = require('./_hasObjectTag.js');
+
+// In IE 10 - Edge 13, `DataView` has string tag `'[object Object]'`.
+// In IE 11, the most common among them, this problem also applies to
+// `Map`, `WeakMap` and `Set`.
+// Also, there are cases where an application can override the native
+// `DataView` object, in cases like that we can't use the constructor
+// safely and should just rely on alternate `DataView` checks
+var hasDataViewBug = (
+      _setup.supportsDataView && (!/\[native code\]/.test(String(DataView)) || _hasObjectTag(new DataView(new ArrayBuffer(8))))
+    ),
+    isIE11 = (typeof Map !== 'undefined' && _hasObjectTag(new Map));
+
+exports.hasDataViewBug = hasDataViewBug;
+exports.isIE11 = isIE11;

landvex/node_modules/underscore/cjs/_tagTester.js

@@ -0,0 +1,11 @@
+var _setup = require('./_setup.js');
+
+// Internal function for creating a `toString`-based type tester.
+function tagTester(name) {
+  var tag = '[object ' + name + ']';
+  return function(obj) {
+    return _setup.toString.call(obj) === tag;
+  };
+}
+
+module.exports = tagTester;

landvex/node_modules/underscore/cjs/_toBufferView.js

@@ -0,0 +1,13 @@
+var _getByteLength = require('./_getByteLength.js');
+
+// Internal function to wrap or shallow-copy an ArrayBuffer,
+// typed array or DataView to a new view, reusing the buffer.
+function toBufferView(bufferSource) {
+  return new Uint8Array(
+    bufferSource.buffer || bufferSource,
+    bufferSource.byteOffset || 0,
+    _getByteLength(bufferSource)
+  );
+}
+
+module.exports = toBufferView;

landvex/node_modules/underscore/cjs/_toPath.js

@@ -0,0 +1,10 @@
+var underscore = require('./underscore.js');
+require('./toPath.js');
+
+// Internal wrapper for `_.toPath` to enable minification.
+// Similar to `cb` for `_.iteratee`.
+function toPath(path) {
+  return underscore.toPath(path);
+}
+
+module.exports = toPath;

landvex/node_modules/underscore/cjs/_unescapeMap.js

@@ -0,0 +1,7 @@
+var invert = require('./invert.js');
+var _escapeMap = require('./_escapeMap.js');
+
+// Internal list of HTML entities for unescaping.
+var unescapeMap = invert(_escapeMap);
+
+module.exports = unescapeMap;

landvex/node_modules/underscore/cjs/after.js

@@ -0,0 +1,10 @@
+// Returns a function that will only be executed on and after the Nth call.
+function after(times, func) {
+  return function() {
+    if (--times < 1) {
+      return func.apply(this, arguments);
+    }
+  };
+}
+
+module.exports = after;

landvex/node_modules/underscore/cjs/allKeys.js

@@ -0,0 +1,15 @@
+var isObject = require('./isObject.js');
+var _setup = require('./_setup.js');
+var _collectNonEnumProps = require('./_collectNonEnumProps.js');
+
+// Retrieve all the enumerable property names of an object.
+function allKeys(obj) {
+  if (!isObject(obj)) return [];
+  var keys = [];
+  for (var key in obj) keys.push(key);
+  // Ahem, IE < 9.
+  if (_setup.hasEnumBug) _collectNonEnumProps(obj, keys);
+  return keys;
+}
+
+module.exports = allKeys;

landvex/node_modules/underscore/cjs/before.js

@@ -0,0 +1,14 @@
+// Returns a function that will only be executed up to (but not including) the
+// Nth call.
+function before(times, func) {
+  var memo;
+  return function() {
+    if (--times > 0) {
+      memo = func.apply(this, arguments);
+    }
+    if (times <= 1) func = null;
+    return memo;
+  };
+}
+
+module.exports = before;

landvex/node_modules/underscore/cjs/bind.js

@@ -0,0 +1,15 @@
+var restArguments = require('./restArguments.js');
+var isFunction = require('./isFunction.js');
+var _executeBound = require('./_executeBound.js');
+
+// Create a function bound to a given object (assigning `this`, and arguments,
+// optionally).
+var bind = restArguments(function(func, context, args) {
+  if (!isFunction(func)) throw new TypeError('Bind must be called on a function');
+  var bound = restArguments(function(callArgs) {
+    return _executeBound(func, bound, context, this, args.concat(callArgs));
+  });
+  return bound;
+});
+
+module.exports = bind;

landvex/node_modules/underscore/cjs/bindAll.js

@@ -0,0 +1,19 @@
+var restArguments = require('./restArguments.js');
+var _flatten = require('./_flatten.js');
+var bind = require('./bind.js');
+
+// Bind a number of an object's methods to that object. Remaining arguments
+// are the method names to be bound. Useful for ensuring that all callbacks
+// defined on an object belong to it.
+var bindAll = restArguments(function(obj, keys) {
+  keys = _flatten(keys, false, false);
+  var index = keys.length;
+  if (index < 1) throw new Error('bindAll must be passed function names');
+  while (index--) {
+    var key = keys[index];
+    obj[key] = bind(obj[key], obj);
+  }
+  return obj;
+});
+
+module.exports = bindAll;

landvex/node_modules/underscore/cjs/chain.js

@@ -0,0 +1,10 @@
+var underscore = require('./underscore.js');
+
+// Start chaining a wrapped Underscore object.
+function chain(obj) {
+  var instance = underscore(obj);
+  instance._chain = true;
+  return instance;
+}
+
+module.exports = chain;

landvex/node_modules/underscore/cjs/chunk.js

@@ -0,0 +1,15 @@
+var _setup = require('./_setup.js');
+
+// Chunk a single array into multiple arrays, each containing `count` or fewer
+// items.
+function chunk(array, count) {
+  if (count == null || count < 1) return [];
+  var result = [];
+  var i = 0, length = array.length;
+  while (i < length) {
+    result.push(_setup.slice.call(array, i, i += count));
+  }
+  return result;
+}
+
+module.exports = chunk;

landvex/node_modules/underscore/cjs/clone.js

@@ -0,0 +1,11 @@
+var isObject = require('./isObject.js');
+var isArray = require('./isArray.js');
+var extend = require('./extend.js');
+
+// Create a (shallow-cloned) duplicate of an object.
+function clone(obj) {
+  if (!isObject(obj)) return obj;
+  return isArray(obj) ? obj.slice() : extend({}, obj);
+}
+
+module.exports = clone;

landvex/node_modules/underscore/cjs/compact.js

@@ -0,0 +1,8 @@
+var filter = require('./filter.js');
+
+// Trim out all falsy values from an array.
+function compact(array) {
+  return filter(array, Boolean);
+}
+
+module.exports = compact;

landvex/node_modules/underscore/cjs/compose.js

@@ -0,0 +1,14 @@
+// Returns a function that is the composition of a list of functions, each
+// consuming the return value of the function that follows.
+function compose() {
+  var args = arguments;
+  var start = args.length - 1;
+  return function() {
+    var i = start;
+    var result = args[start].apply(this, arguments);
+    while (i--) result = args[i].call(this, result);
+    return result;
+  };
+}
+
+module.exports = compose;

landvex/node_modules/underscore/cjs/constant.js

@@ -0,0 +1,8 @@
+// Predicate-generating function. Often useful outside of Underscore.
+function constant(value) {
+  return function() {
+    return value;
+  };
+}
+
+module.exports = constant;

landvex/node_modules/underscore/cjs/contains.js

@@ -0,0 +1,12 @@
+var _isArrayLike = require('./_isArrayLike.js');
+var values = require('./values.js');
+var indexOf = require('./indexOf.js');
+
+// Determine if the array or object contains a given item (using `===`).
+function contains(obj, item, fromIndex, guard) {
+  if (!_isArrayLike(obj)) obj = values(obj);
+  if (typeof fromIndex != 'number' || guard) fromIndex = 0;
+  return indexOf(obj, item, fromIndex) >= 0;
+}
+
+module.exports = contains;

landvex/node_modules/underscore/cjs/countBy.js

@@ -0,0 +1,11 @@
+var _group = require('./_group.js');
+var _has = require('./_has.js');
+
+// Counts instances of an object that group by a certain criterion. Pass
+// either a string attribute to count by, or a function that returns the
+// criterion.
+var countBy = _group(function(result, value, key) {
+  if (_has(result, key)) result[key]++; else result[key] = 1;
+});
+
+module.exports = countBy;

landvex/node_modules/underscore/cjs/create.js

@@ -0,0 +1,13 @@
+var _baseCreate = require('./_baseCreate.js');
+var extendOwn = require('./extendOwn.js');
+
+// Creates an object that inherits from the given prototype object.
+// If additional properties are provided then they will be added to the
+// created object.
+function create(prototype, props) {
+  var result = _baseCreate(prototype);
+  if (props) extendOwn(result, props);
+  return result;
+}
+
+module.exports = create;

landvex/node_modules/underscore/cjs/debounce.js

@@ -0,0 +1,42 @@
+var restArguments = require('./restArguments.js');
+var now = require('./now.js');
+
+// When a sequence of calls of the returned function ends, the argument
+// function is triggered. The end of a sequence is defined by the `wait`
+// parameter. If `immediate` is passed, the argument function will be
+// triggered at the beginning of the sequence instead of at the end.
+function debounce(func, wait, immediate) {
+  var timeout, previous, args, result, context;
+
+  var later = function() {
+    var passed = now() - previous;
+    if (wait > passed) {
+      timeout = setTimeout(later, wait - passed);
+    } else {
+      timeout = null;
+      if (!immediate) result = func.apply(context, args);
+      // This check is needed because `func` can recursively invoke `debounced`.
+      if (!timeout) args = context = null;
+    }
+  };
+
+  var debounced = restArguments(function(_args) {
+    context = this;
+    args = _args;
+    previous = now();
+    if (!timeout) {
+      timeout = setTimeout(later, wait);
+      if (immediate) result = func.apply(context, args);
+    }
+    return result;
+  });
+
+  debounced.cancel = function() {
+    clearTimeout(timeout);
+    timeout = args = context = null;
+  };
+
+  return debounced;
+}
+
+module.exports = debounce;

landvex/node_modules/underscore/cjs/defaults.js

@@ -0,0 +1,7 @@
+var _createAssigner = require('./_createAssigner.js');
+var allKeys = require('./allKeys.js');
+
+// Fill in a given object with default properties.
+var defaults = _createAssigner(allKeys, true);
+
+module.exports = defaults;

landvex/node_modules/underscore/cjs/defer.js

@@ -0,0 +1,9 @@
+var partial = require('./partial.js');
+var delay = require('./delay.js');
+var underscore = require('./underscore.js');
+
+// Defers a function, scheduling it to run after the current call stack has
+// cleared.
+var defer = partial(delay, underscore, 1);
+
+module.exports = defer;

landvex/node_modules/underscore/cjs/delay.js

@@ -0,0 +1,11 @@
+var restArguments = require('./restArguments.js');
+
+// Delays a function for the given number of milliseconds, and then calls
+// it with the arguments supplied.
+var delay = restArguments(function(func, wait, args) {
+  return setTimeout(function() {
+    return func.apply(null, args);
+  }, wait);
+});
+
+module.exports = delay;

landvex/node_modules/underscore/cjs/difference.js

@@ -0,0 +1,15 @@
+var restArguments = require('./restArguments.js');
+var _flatten = require('./_flatten.js');
+var filter = require('./filter.js');
+var contains = require('./contains.js');
+
+// Take the difference between one array and a number of other arrays.
+// Only the elements present in just the first array will remain.
+var difference = restArguments(function(array, rest) {
+  rest = _flatten(rest, true, true);
+  return filter(array, function(value){
+    return !contains(rest, value);
+  });
+});
+
+module.exports = difference;

landvex/node_modules/underscore/cjs/each.js

@@ -0,0 +1,25 @@
+var _optimizeCb = require('./_optimizeCb.js');
+var _isArrayLike = require('./_isArrayLike.js');
+var keys = require('./keys.js');
+
+// The cornerstone for collection functions, an `each`
+// implementation, aka `forEach`.
+// Handles raw objects in addition to array-likes. Treats all
+// sparse array-likes as if they were dense.
+function each(obj, iteratee, context) {
+  iteratee = _optimizeCb(iteratee, context);
+  var i, length;
+  if (_isArrayLike(obj)) {
+    for (i = 0, length = obj.length; i < length; i++) {
+      iteratee(obj[i], i, obj);
+    }
+  } else {
+    var _keys = keys(obj);
+    for (i = 0, length = _keys.length; i < length; i++) {
+      iteratee(obj[_keys[i]], _keys[i], obj);
+    }
+  }
+  return obj;
+}
+
+module.exports = each;

landvex/node_modules/underscore/cjs/escape.js

@@ -0,0 +1,7 @@
+var _createEscaper = require('./_createEscaper.js');
+var _escapeMap = require('./_escapeMap.js');
+
+// Function for escaping strings to HTML interpolation.
+var _escape = _createEscaper(_escapeMap);
+
+module.exports = _escape;

landvex/node_modules/underscore/cjs/every.js

@@ -0,0 +1,17 @@
+var _cb = require('./_cb.js');
+var _isArrayLike = require('./_isArrayLike.js');
+var keys = require('./keys.js');
+
+// Determine whether all of the elements pass a truth test.
+function every(obj, predicate, context) {
+  predicate = _cb(predicate, context);
+  var _keys = !_isArrayLike(obj) && keys(obj),
+      length = (_keys || obj).length;
+  for (var index = 0; index < length; index++) {
+    var currentKey = _keys ? _keys[index] : index;
+    if (!predicate(obj[currentKey], currentKey, obj)) return false;
+  }
+  return true;
+}
+
+module.exports = every;

landvex/node_modules/underscore/cjs/extend.js

@@ -0,0 +1,7 @@
+var _createAssigner = require('./_createAssigner.js');
+var allKeys = require('./allKeys.js');
+
+// Extend a given object with all the properties in passed-in object(s).
+var extend = _createAssigner(allKeys);
+
+module.exports = extend;

landvex/node_modules/underscore/cjs/extendOwn.js

@@ -0,0 +1,9 @@
+var _createAssigner = require('./_createAssigner.js');
+var keys = require('./keys.js');
+
+// Assigns a given object with all the own properties in the passed-in
+// object(s).
+// (https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/assign)
+var extendOwn = _createAssigner(keys);
+
+module.exports = extendOwn;

landvex/node_modules/underscore/cjs/filter.js

@@ -0,0 +1,14 @@
+var _cb = require('./_cb.js');
+var each = require('./each.js');
+
+// Return all the elements that pass a truth test.
+function filter(obj, predicate, context) {
+  var results = [];
+  predicate = _cb(predicate, context);
+  each(obj, function(value, index, list) {
+    if (predicate(value, index, list)) results.push(value);
+  });
+  return results;
+}
+
+module.exports = filter;

landvex/node_modules/underscore/cjs/find.js

@@ -0,0 +1,12 @@
+var _isArrayLike = require('./_isArrayLike.js');
+var findIndex = require('./findIndex.js');
+var findKey = require('./findKey.js');
+
+// Return the first value which passes a truth test.
+function find(obj, predicate, context) {
+  var keyFinder = _isArrayLike(obj) ? findIndex : findKey;
+  var key = keyFinder(obj, predicate, context);
+  if (key !== void 0 && key !== -1) return obj[key];
+}
+
+module.exports = find;

landvex/node_modules/underscore/cjs/findIndex.js

@@ -0,0 +1,6 @@
+var _createPredicateIndexFinder = require('./_createPredicateIndexFinder.js');
+
+// Returns the first index on an array-like that passes a truth test.
+var findIndex = _createPredicateIndexFinder(1);
+
+module.exports = findIndex;

landvex/node_modules/underscore/cjs/findKey.js

@@ -0,0 +1,14 @@
+var _cb = require('./_cb.js');
+var keys = require('./keys.js');
+
+// Returns the first key on an object that passes a truth test.
+function findKey(obj, predicate, context) {
+  predicate = _cb(predicate, context);
+  var _keys = keys(obj), key;
+  for (var i = 0, length = _keys.length; i < length; i++) {
+    key = _keys[i];
+    if (predicate(obj[key], key, obj)) return key;
+  }
+}
+
+module.exports = findKey;

landvex/node_modules/underscore/cjs/findLastIndex.js

@@ -0,0 +1,6 @@
+var _createPredicateIndexFinder = require('./_createPredicateIndexFinder.js');
+
+// Returns the last index on an array-like that passes a truth test.
+var findLastIndex = _createPredicateIndexFinder(-1);
+
+module.exports = findLastIndex;

landvex/node_modules/underscore/cjs/findWhere.js

@@ -0,0 +1,10 @@
+var find = require('./find.js');
+var matcher = require('./matcher.js');
+
+// Convenience version of a common use case of `_.find`: getting the first
+// object containing specific `key:value` pairs.
+function findWhere(obj, attrs) {
+  return find(obj, matcher(attrs));
+}
+
+module.exports = findWhere;

landvex/node_modules/underscore/cjs/first.js

@@ -0,0 +1,11 @@
+var initial = require('./initial.js');
+
+// Get the first element of an array. Passing **n** will return the first N
+// values in the array. The **guard** check allows it to work with `_.map`.
+function first(array, n, guard) {
+  if (array == null || array.length < 1) return n == null || guard ? void 0 : [];
+  if (n == null || guard) return array[0];
+  return initial(array, array.length - n);
+}
+
+module.exports = first;

landvex/node_modules/underscore/cjs/flatten.js

@@ -0,0 +1,9 @@
+var _flatten = require('./_flatten.js');
+
+// Flatten out an array, either recursively (by default), or up to `depth`.
+// Passing `true` or `false` as `depth` means `1` or `Infinity`, respectively.
+function flatten(array, depth) {
+  return _flatten(array, depth, false);
+}
+
+module.exports = flatten;

landvex/node_modules/underscore/cjs/functions.js

@@ -0,0 +1,12 @@
+var isFunction = require('./isFunction.js');
+
+// Return a sorted list of the function names available on the object.
+function functions(obj) {
+  var names = [];
+  for (var key in obj) {
+    if (isFunction(obj[key])) names.push(key);
+  }
+  return names.sort();
+}
+
+module.exports = functions;

landvex/node_modules/underscore/cjs/get.js

@@ -0,0 +1,14 @@
+var _toPath = require('./_toPath.js');
+var _deepGet = require('./_deepGet.js');
+var isUndefined = require('./isUndefined.js');
+
+// Get the value of the (deep) property on `path` from `object`.
+// If any property in `path` does not exist or if the value is
+// `undefined`, return `defaultValue` instead.
+// The `path` is normalized through `_.toPath`.
+function get(object, path, defaultValue) {
+  var value = _deepGet(object, _toPath(path));
+  return isUndefined(value) ? defaultValue : value;
+}
+
+module.exports = get;

landvex/node_modules/underscore/cjs/groupBy.js

@@ -0,0 +1,10 @@
+var _group = require('./_group.js');
+var _has = require('./_has.js');
+
+// Groups the object's values by a criterion. Pass either a string attribute
+// to group by, or a function that returns the criterion.
+var groupBy = _group(function(result, value, key) {
+  if (_has(result, key)) result[key].push(value); else result[key] = [value];
+});
+
+module.exports = groupBy;

landvex/node_modules/underscore/cjs/has.js

@@ -0,0 +1,18 @@
+var _has = require('./_has.js');
+var _toPath = require('./_toPath.js');
+
+// Shortcut function for checking if an object has a given property directly on
+// itself (in other words, not on a prototype). Unlike the internal `has`
+// function, this public version can also traverse nested properties.
+function has(obj, path) {
+  path = _toPath(path);
+  var length = path.length;
+  for (var i = 0; i < length; i++) {
+    var key = path[i];
+    if (!_has(obj, key)) return false;
+    obj = obj[key];
+  }
+  return !!length;
+}
+
+module.exports = has;

landvex/node_modules/underscore/cjs/identity.js

@@ -0,0 +1,6 @@
+// Keep the identity function around for default iteratees.
+function identity(value) {
+  return value;
+}
+
+module.exports = identity;

landvex/node_modules/underscore/cjs/index-default.js

@@ -0,0 +1,11 @@
+var index = require('./index.js');
+var mixin = require('./mixin.js');
+
+// Default Export
+
+// Add all of the Underscore functions to the wrapper object.
+var _ = mixin(index);
+// Legacy Node.js API.
+_._ = _;
+
+module.exports = _;

landvex/node_modules/underscore/cjs/index.js

@@ -0,0 +1,278 @@
+Object.defineProperty(exports, '__esModule', { value: true });
+
+var _setup = require('./_setup.js');
+var restArguments = require('./restArguments.js');
+var isObject = require('./isObject.js');
+var isNull = require('./isNull.js');
+var isUndefined = require('./isUndefined.js');
+var isBoolean = require('./isBoolean.js');
+var isElement = require('./isElement.js');
+var isString = require('./isString.js');
+var isNumber = require('./isNumber.js');
+var isDate = require('./isDate.js');
+var isRegExp = require('./isRegExp.js');
+var isError = require('./isError.js');
+var isSymbol = require('./isSymbol.js');
+var isArrayBuffer = require('./isArrayBuffer.js');
+var isDataView = require('./isDataView.js');
+var isArray = require('./isArray.js');
+var isFunction = require('./isFunction.js');
+var isArguments = require('./isArguments.js');
+var _isFinite = require('./isFinite.js');
+var _isNaN = require('./isNaN.js');
+var isTypedArray = require('./isTypedArray.js');
+var isEmpty = require('./isEmpty.js');
+var isMatch = require('./isMatch.js');
+var isEqual = require('./isEqual.js');
+var isMap = require('./isMap.js');
+var isWeakMap = require('./isWeakMap.js');
+var isSet = require('./isSet.js');
+var isWeakSet = require('./isWeakSet.js');
+var keys = require('./keys.js');
+var allKeys = require('./allKeys.js');
+var values = require('./values.js');
+var pairs = require('./pairs.js');
+var invert = require('./invert.js');
+var functions = require('./functions.js');
+var extend = require('./extend.js');
+var extendOwn = require('./extendOwn.js');
+var defaults = require('./defaults.js');
+var create = require('./create.js');
+var clone = require('./clone.js');
+var tap = require('./tap.js');
+var get = require('./get.js');
+var has = require('./has.js');
+var mapObject = require('./mapObject.js');
+var identity = require('./identity.js');
+var constant = require('./constant.js');
+var noop = require('./noop.js');
+var toPath = require('./toPath.js');
+var property = require('./property.js');
+var propertyOf = require('./propertyOf.js');
+var matcher = require('./matcher.js');
+var times = require('./times.js');
+var random = require('./random.js');
+var now = require('./now.js');
+var _escape = require('./escape.js');
+var _unescape = require('./unescape.js');
+var templateSettings = require('./templateSettings.js');
+var template = require('./template.js');
+var result = require('./result.js');
+var uniqueId = require('./uniqueId.js');
+var chain = require('./chain.js');
+var iteratee = require('./iteratee.js');
+var partial = require('./partial.js');
+var bind = require('./bind.js');
+var bindAll = require('./bindAll.js');
+var memoize = require('./memoize.js');
+var delay = require('./delay.js');
+var defer = require('./defer.js');
+var throttle = require('./throttle.js');
+var debounce = require('./debounce.js');
+var wrap = require('./wrap.js');
+var negate = require('./negate.js');
+var compose = require('./compose.js');
+var after = require('./after.js');
+var before = require('./before.js');
+var once = require('./once.js');
+var findKey = require('./findKey.js');
+var findIndex = require('./findIndex.js');
+var findLastIndex = require('./findLastIndex.js');
+var sortedIndex = require('./sortedIndex.js');
+var indexOf = require('./indexOf.js');
+var lastIndexOf = require('./lastIndexOf.js');
+var find = require('./find.js');
+var findWhere = require('./findWhere.js');
+var each = require('./each.js');
+var map = require('./map.js');
+var reduce = require('./reduce.js');
+var reduceRight = require('./reduceRight.js');
+var filter = require('./filter.js');
+var reject = require('./reject.js');
+var every = require('./every.js');
+var some = require('./some.js');
+var contains = require('./contains.js');
+var invoke = require('./invoke.js');
+var pluck = require('./pluck.js');
+var where = require('./where.js');
+var max = require('./max.js');
+var min = require('./min.js');
+var shuffle = require('./shuffle.js');
+var sample = require('./sample.js');
+var sortBy = require('./sortBy.js');
+var groupBy = require('./groupBy.js');
+var indexBy = require('./indexBy.js');
+var countBy = require('./countBy.js');
+var partition = require('./partition.js');
+var toArray = require('./toArray.js');
+var size = require('./size.js');
+var pick = require('./pick.js');
+var omit = require('./omit.js');
+var first = require('./first.js');
+var initial = require('./initial.js');
+var last = require('./last.js');
+var rest = require('./rest.js');
+var compact = require('./compact.js');
+var flatten = require('./flatten.js');
+var without = require('./without.js');
+var uniq = require('./uniq.js');
+var union = require('./union.js');
+var intersection = require('./intersection.js');
+var difference = require('./difference.js');
+var unzip = require('./unzip.js');
+var zip = require('./zip.js');
+var object = require('./object.js');
+var range = require('./range.js');
+var chunk = require('./chunk.js');
+var mixin = require('./mixin.js');
+require('./underscore-array-methods.js');
+var underscore = require('./underscore.js');
+
+// Named Exports
+
+exports.VERSION = _setup.VERSION;
+exports.restArguments = restArguments;
+exports.isObject = isObject;
+exports.isNull = isNull;
+exports.isUndefined = isUndefined;
+exports.isBoolean = isBoolean;
+exports.isElement = isElement;
+exports.isString = isString;
+exports.isNumber = isNumber;
+exports.isDate = isDate;
+exports.isRegExp = isRegExp;
+exports.isError = isError;
+exports.isSymbol = isSymbol;
+exports.isArrayBuffer = isArrayBuffer;
+exports.isDataView = isDataView;
+exports.isArray = isArray;
+exports.isFunction = isFunction;
+exports.isArguments = isArguments;
+exports.isFinite = _isFinite;
+exports.isNaN = _isNaN;
+exports.isTypedArray = isTypedArray;
+exports.isEmpty = isEmpty;
+exports.isMatch = isMatch;
+exports.isEqual = isEqual;
+exports.isMap = isMap;
+exports.isWeakMap = isWeakMap;
+exports.isSet = isSet;
+exports.isWeakSet = isWeakSet;
+exports.keys = keys;
+exports.allKeys = allKeys;
+exports.values = values;
+exports.pairs = pairs;
+exports.invert = invert;
+exports.functions = functions;
+exports.methods = functions;
+exports.extend = extend;
+exports.assign = extendOwn;
+exports.extendOwn = extendOwn;
+exports.defaults = defaults;
+exports.create = create;
+exports.clone = clone;
+exports.tap = tap;
+exports.get = get;
+exports.has = has;
+exports.mapObject = mapObject;
+exports.identity = identity;
+exports.constant = constant;
+exports.noop = noop;
+exports.toPath = toPath;
+exports.property = property;
+exports.propertyOf = propertyOf;
+exports.matcher = matcher;
+exports.matches = matcher;
+exports.times = times;
+exports.random = random;
+exports.now = now;
+exports.escape = _escape;
+exports.unescape = _unescape;
+exports.templateSettings = templateSettings;
+exports.template = template;
+exports.result = result;
+exports.uniqueId = uniqueId;
+exports.chain = chain;
+exports.iteratee = iteratee;
+exports.partial = partial;
+exports.bind = bind;
+exports.bindAll = bindAll;
+exports.memoize = memoize;
+exports.delay = delay;
+exports.defer = defer;
+exports.throttle = throttle;
+exports.debounce = debounce;
+exports.wrap = wrap;
+exports.negate = negate;
+exports.compose = compose;
+exports.after = after;
+exports.before = before;
+exports.once = once;
+exports.findKey = findKey;
+exports.findIndex = findIndex;
+exports.findLastIndex = findLastIndex;
+exports.sortedIndex = sortedIndex;
+exports.indexOf = indexOf;
+exports.lastIndexOf = lastIndexOf;
+exports.detect = find;
+exports.find = find;
+exports.findWhere = findWhere;
+exports.each = each;
+exports.forEach = each;
+exports.collect = map;
+exports.map = map;
+exports.foldl = reduce;
+exports.inject = reduce;
+exports.reduce = reduce;
+exports.foldr = reduceRight;
+exports.reduceRight = reduceRight;
+exports.filter = filter;
+exports.select = filter;
+exports.reject = reject;
+exports.all = every;
+exports.every = every;
+exports.any = some;
+exports.some = some;
+exports.contains = contains;
+exports.include = contains;
+exports.includes = contains;
+exports.invoke = invoke;
+exports.pluck = pluck;
+exports.where = where;
+exports.max = max;
+exports.min = min;
+exports.shuffle = shuffle;
+exports.sample = sample;
+exports.sortBy = sortBy;
+exports.groupBy = groupBy;
+exports.indexBy = indexBy;
+exports.countBy = countBy;
+exports.partition = partition;
+exports.toArray = toArray;
+exports.size = size;
+exports.pick = pick;
+exports.omit = omit;
+exports.first = first;
+exports.head = first;
+exports.take = first;
+exports.initial = initial;
+exports.last = last;
+exports.drop = rest;
+exports.rest = rest;
+exports.tail = rest;
+exports.compact = compact;
+exports.flatten = flatten;
+exports.without = without;
+exports.uniq = uniq;
+exports.unique = uniq;
+exports.union = union;
+exports.intersection = intersection;
+exports.difference = difference;
+exports.transpose = unzip;
+exports.unzip = unzip;
+exports.zip = zip;
+exports.object = object;
+exports.range = range;
+exports.chunk = chunk;
+exports.mixin = mixin;
+exports.default = underscore;

landvex/node_modules/underscore/cjs/indexBy.js

@@ -0,0 +1,9 @@
+var _group = require('./_group.js');
+
+// Indexes the object's values by a criterion, similar to `_.groupBy`, but for
+// when you know that your index values will be unique.
+var indexBy = _group(function(result, value, key) {
+  result[key] = value;
+});
+
+module.exports = indexBy;

landvex/node_modules/underscore/cjs/indexOf.js

@@ -0,0 +1,11 @@
+var sortedIndex = require('./sortedIndex.js');
+var findIndex = require('./findIndex.js');
+var _createIndexFinder = require('./_createIndexFinder.js');
+
+// Return the position of the first occurrence of an item in an array,
+// or -1 if the item is not included in the array.
+// If the array is large and already in sort order, pass `true`
+// for **isSorted** to use binary search.
+var indexOf = _createIndexFinder(1, findIndex, sortedIndex);
+
+module.exports = indexOf;

landvex/node_modules/underscore/cjs/initial.js

@@ -0,0 +1,10 @@
+var _setup = require('./_setup.js');
+
+// Returns everything but the last entry of the array. Especially useful on
+// the arguments object. Passing **n** will return all the values in
+// the array, excluding the last N.
+function initial(array, n, guard) {
+  return _setup.slice.call(array, 0, Math.max(0, array.length - (n == null || guard ? 1 : n)));
+}
+
+module.exports = initial;

landvex/node_modules/underscore/cjs/intersection.js

@@ -0,0 +1,21 @@
+var _getLength = require('./_getLength.js');
+var contains = require('./contains.js');
+
+// Produce an array that contains every item shared between all the
+// passed-in arrays.
+function intersection(array) {
+  var result = [];
+  var argsLength = arguments.length;
+  for (var i = 0, length = _getLength(array); i < length; i++) {
+    var item = array[i];
+    if (contains(result, item)) continue;
+    var j;
+    for (j = 1; j < argsLength; j++) {
+      if (!contains(arguments[j], item)) break;
+    }
+    if (j === argsLength) result.push(item);
+  }
+  return result;
+}
+
+module.exports = intersection;

landvex/node_modules/underscore/cjs/invert.js

@@ -0,0 +1,13 @@
+var keys = require('./keys.js');
+
+// Invert the keys and values of an object. The values must be serializable.
+function invert(obj) {
+  var result = {};
+  var _keys = keys(obj);
+  for (var i = 0, length = _keys.length; i < length; i++) {
+    result[obj[_keys[i]]] = _keys[i];
+  }
+  return result;
+}
+
+module.exports = invert;

landvex/node_modules/underscore/cjs/invoke.js

@@ -0,0 +1,30 @@
+var restArguments = require('./restArguments.js');
+var isFunction = require('./isFunction.js');
+var map = require('./map.js');
+var _deepGet = require('./_deepGet.js');
+var _toPath = require('./_toPath.js');
+
+// Invoke a method (with arguments) on every item in a collection.
+var invoke = restArguments(function(obj, path, args) {
+  var contextPath, func;
+  if (isFunction(path)) {
+    func = path;
+  } else {
+    path = _toPath(path);
+    contextPath = path.slice(0, -1);
+    path = path[path.length - 1];
+  }
+  return map(obj, function(context) {
+    var method = func;
+    if (!method) {
+      if (contextPath && contextPath.length) {
+        context = _deepGet(context, contextPath);
+      }
+      if (context == null) return void 0;
+      method = context[path];
+    }
+    return method == null ? method : method.apply(context, args);
+  });
+});
+
+module.exports = invoke;

landvex/node_modules/underscore/cjs/isArguments.js

@@ -0,0 +1,18 @@
+var _tagTester = require('./_tagTester.js');
+var _has = require('./_has.js');
+
+var isArguments = _tagTester('Arguments');
+
+// Define a fallback version of the method in browsers (ahem, IE < 9), where
+// there isn't any inspectable "Arguments" type.
+(function() {
+  if (!isArguments(arguments)) {
+    isArguments = function(obj) {
+      return _has(obj, 'callee');
+    };
+  }
+}());
+
+var isArguments$1 = isArguments;
+
+module.exports = isArguments$1;

landvex/node_modules/underscore/cjs/isArray.js

@@ -0,0 +1,8 @@
+var _setup = require('./_setup.js');
+var _tagTester = require('./_tagTester.js');
+
+// Is a given value an array?
+// Delegates to ECMA5's native `Array.isArray`.
+var isArray = _setup.nativeIsArray || _tagTester('Array');
+
+module.exports = isArray;

landvex/node_modules/underscore/cjs/isArrayBuffer.js

@@ -0,0 +1,5 @@
+var _tagTester = require('./_tagTester.js');
+
+var isArrayBuffer = _tagTester('ArrayBuffer');
+
+module.exports = isArrayBuffer;

landvex/node_modules/underscore/cjs/isBoolean.js

@@ -0,0 +1,8 @@
+var _setup = require('./_setup.js');
+
+// Is a given value a boolean?
+function isBoolean(obj) {
+  return obj === true || obj === false || _setup.toString.call(obj) === '[object Boolean]';
+}
+
+module.exports = isBoolean;

landvex/node_modules/underscore/cjs/isDataView.js

@@ -0,0 +1,18 @@
+var _tagTester = require('./_tagTester.js');
+var isFunction = require('./isFunction.js');
+var isArrayBuffer = require('./isArrayBuffer.js');
+var _stringTagBug = require('./_stringTagBug.js');
+
+var isDataView = _tagTester('DataView');
+
+// In IE 10 - Edge 13, we need a different heuristic
+// to determine whether an object is a `DataView`.
+// Also, in cases where the native `DataView` is
+// overridden we can't rely on the tag itself.
+function alternateIsDataView(obj) {
+  return obj != null && isFunction(obj.getInt8) && isArrayBuffer(obj.buffer);
+}
+
+var isDataView$1 = (_stringTagBug.hasDataViewBug ? alternateIsDataView : isDataView);
+
+module.exports = isDataView$1;

landvex/node_modules/underscore/cjs/isDate.js

@@ -0,0 +1,5 @@
+var _tagTester = require('./_tagTester.js');
+
+var isDate = _tagTester('Date');
+
+module.exports = isDate;

landvex/node_modules/underscore/cjs/isElement.js

@@ -0,0 +1,6 @@
+// Is a given value a DOM element?
+function isElement(obj) {
+  return !!(obj && obj.nodeType === 1);
+}
+
+module.exports = isElement;

landvex/node_modules/underscore/cjs/isEmpty.js

@@ -0,0 +1,20 @@
+var _getLength = require('./_getLength.js');
+var isArray = require('./isArray.js');
+var isString = require('./isString.js');
+var isArguments = require('./isArguments.js');
+var keys = require('./keys.js');
+
+// Is a given array, string, or object empty?
+// An "empty" object has no enumerable own-properties.
+function isEmpty(obj) {
+  if (obj == null) return true;
+  // Skip the more expensive `toString`-based type checks if `obj` has no
+  // `.length`.
+  var length = _getLength(obj);
+  if (typeof length == 'number' && (
+    isArray(obj) || isString(obj) || isArguments(obj)
+  )) return length === 0;
+  return _getLength(keys(obj)) === 0;
+}
+
+module.exports = isEmpty;

landvex/node_modules/underscore/cjs/isEqual.js

@@ -0,0 +1,140 @@
+var underscore = require('./underscore.js');
+var _setup = require('./_setup.js');
+var _getByteLength = require('./_getByteLength.js');
+var isTypedArray = require('./isTypedArray.js');
+var isFunction = require('./isFunction.js');
+var _stringTagBug = require('./_stringTagBug.js');
+var isDataView = require('./isDataView.js');
+var keys = require('./keys.js');
+var _has = require('./_has.js');
+var _toBufferView = require('./_toBufferView.js');
+
+// We use this string twice, so give it a name for minification.
+var tagDataView = '[object DataView]';
+
+// Internal recursive comparison function for `_.isEqual`.
+function eq(a, b, aStack, bStack) {
+  // Identical objects are equal. `0 === -0`, but they aren't identical.
+  // See the [Harmony `egal` proposal](https://wiki.ecmascript.org/doku.php?id=harmony:egal).
+  if (a === b) return a !== 0 || 1 / a === 1 / b;
+  // `null` or `undefined` only equal to itself (strict comparison).
+  if (a == null || b == null) return false;
+  // `NaN`s are equivalent, but non-reflexive.
+  if (a !== a) return b !== b;
+  // Exhaust primitive checks
+  var type = typeof a;
+  if (type !== 'function' && type !== 'object' && typeof b != 'object') return false;
+  return deepEq(a, b, aStack, bStack);
+}
+
+// Internal recursive comparison function for `_.isEqual`.
+function deepEq(a, b, aStack, bStack) {
+  // Unwrap any wrapped objects.
+  if (a instanceof underscore) a = a._wrapped;
+  if (b instanceof underscore) b = b._wrapped;
+  // Compare `[[Class]]` names.
+  var className = _setup.toString.call(a);
+  if (className !== _setup.toString.call(b)) return false;
+  // Work around a bug in IE 10 - Edge 13.
+  if (_stringTagBug.hasDataViewBug && className == '[object Object]' && isDataView(a)) {
+    if (!isDataView(b)) return false;
+    className = tagDataView;
+  }
+  switch (className) {
+    // These types are compared by value.
+    case '[object RegExp]':
+      // RegExps are coerced to strings for comparison (Note: '' + /a/i === '/a/i')
+    case '[object String]':
+      // Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is
+      // equivalent to `new String("5")`.
+      return '' + a === '' + b;
+    case '[object Number]':
+      // `NaN`s are equivalent, but non-reflexive.
+      // Object(NaN) is equivalent to NaN.
+      if (+a !== +a) return +b !== +b;
+      // An `egal` comparison is performed for other numeric values.
+      return +a === 0 ? 1 / +a === 1 / b : +a === +b;
+    case '[object Date]':
+    case '[object Boolean]':
+      // Coerce dates and booleans to numeric primitive values. Dates are compared by their
+      // millisecond representations. Note that invalid dates with millisecond representations
+      // of `NaN` are not equivalent.
+      return +a === +b;
+    case '[object Symbol]':
+      return _setup.SymbolProto.valueOf.call(a) === _setup.SymbolProto.valueOf.call(b);
+    case '[object ArrayBuffer]':
+    case tagDataView:
+      // Coerce to typed array so we can fall through.
+      return deepEq(_toBufferView(a), _toBufferView(b), aStack, bStack);
+  }
+
+  var areArrays = className === '[object Array]';
+  if (!areArrays && isTypedArray(a)) {
+      var byteLength = _getByteLength(a);
+      if (byteLength !== _getByteLength(b)) return false;
+      if (a.buffer === b.buffer && a.byteOffset === b.byteOffset) return true;
+      areArrays = true;
+  }
+  if (!areArrays) {
+    if (typeof a != 'object' || typeof b != 'object') return false;
+
+    // Objects with different constructors are not equivalent, but `Object`s or `Array`s
+    // from different frames are.
+    var aCtor = a.constructor, bCtor = b.constructor;
+    if (aCtor !== bCtor && !(isFunction(aCtor) && aCtor instanceof aCtor &&
+                             isFunction(bCtor) && bCtor instanceof bCtor)
+                        && ('constructor' in a && 'constructor' in b)) {
+      return false;
+    }
+  }
+  // Assume equality for cyclic structures. The algorithm for detecting cyclic
+  // structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`.
+
+  // Initializing stack of traversed objects.
+  // It's done here since we only need them for objects and arrays comparison.
+  aStack = aStack || [];
+  bStack = bStack || [];
+  var length = aStack.length;
+  while (length--) {
+    // Linear search. Performance is inversely proportional to the number of
+    // unique nested structures.
+    if (aStack[length] === a) return bStack[length] === b;
+  }
+
+  // Add the first object to the stack of traversed objects.
+  aStack.push(a);
+  bStack.push(b);
+
+  // Recursively compare objects and arrays.
+  if (areArrays) {
+    // Compare array lengths to determine if a deep comparison is necessary.
+    length = a.length;
+    if (length !== b.length) return false;
+    // Deep compare the contents, ignoring non-numeric properties.
+    while (length--) {
+      if (!eq(a[length], b[length], aStack, bStack)) return false;
+    }
+  } else {
+    // Deep compare objects.
+    var _keys = keys(a), key;
+    length = _keys.length;
+    // Ensure that both objects contain the same number of properties before comparing deep equality.
+    if (keys(b).length !== length) return false;
+    while (length--) {
+      // Deep compare each member
+      key = _keys[length];
+      if (!(_has(b, key) && eq(a[key], b[key], aStack, bStack))) return false;
+    }
+  }
+  // Remove the first object from the stack of traversed objects.
+  aStack.pop();
+  bStack.pop();
+  return true;
+}
+
+// Perform a deep comparison to check if two objects are equal.
+function isEqual(a, b) {
+  return eq(a, b);
+}
+
+module.exports = isEqual;

landvex/node_modules/underscore/cjs/isError.js

@@ -0,0 +1,5 @@
+var _tagTester = require('./_tagTester.js');
+
+var isError = _tagTester('Error');
+
+module.exports = isError;

landvex/node_modules/underscore/cjs/isFinite.js

@@ -0,0 +1,9 @@
+var _setup = require('./_setup.js');
+var isSymbol = require('./isSymbol.js');
+
+// Is a given object a finite number?
+function isFinite(obj) {
+  return !isSymbol(obj) && _setup._isFinite(obj) && !isNaN(parseFloat(obj));
+}
+
+module.exports = isFinite;

landvex/node_modules/underscore/cjs/isFunction.js

@@ -0,0 +1,17 @@
+var _tagTester = require('./_tagTester.js');
+var _setup = require('./_setup.js');
+
+var isFunction = _tagTester('Function');
+
+// Optimize `isFunction` if appropriate. Work around some `typeof` bugs in old
+// v8, IE 11 (#1621), Safari 8 (#1929), and PhantomJS (#2236).
+var nodelist = _setup.root.document && _setup.root.document.childNodes;
+if (typeof /./ != 'function' && typeof Int8Array != 'object' && typeof nodelist != 'function') {
+  isFunction = function(obj) {
+    return typeof obj == 'function' || false;
+  };
+}
+
+var isFunction$1 = isFunction;
+
+module.exports = isFunction$1;

landvex/node_modules/underscore/cjs/isMap.js

@@ -0,0 +1,7 @@
+var _tagTester = require('./_tagTester.js');
+var _stringTagBug = require('./_stringTagBug.js');
+var _methodFingerprint = require('./_methodFingerprint.js');
+
+var isMap = _stringTagBug.isIE11 ? _methodFingerprint.ie11fingerprint(_methodFingerprint.mapMethods) : _tagTester('Map');
+
+module.exports = isMap;

landvex/node_modules/underscore/cjs/isMatch.js

@@ -0,0 +1,15 @@
+var keys = require('./keys.js');
+
+// Returns whether an object has a given set of `key:value` pairs.
+function isMatch(object, attrs) {
+  var _keys = keys(attrs), length = _keys.length;
+  if (object == null) return !length;
+  var obj = Object(object);
+  for (var i = 0; i < length; i++) {
+    var key = _keys[i];
+    if (attrs[key] !== obj[key] || !(key in obj)) return false;
+  }
+  return true;
+}
+
+module.exports = isMatch;

landvex/node_modules/underscore/cjs/isNaN.js

@@ -0,0 +1,9 @@
+var _setup = require('./_setup.js');
+var isNumber = require('./isNumber.js');
+
+// Is the given value `NaN`?
+function isNaN(obj) {
+  return isNumber(obj) && _setup._isNaN(obj);
+}
+
+module.exports = isNaN;

landvex/node_modules/underscore/cjs/isNull.js

@@ -0,0 +1,6 @@
+// Is a given value equal to null?
+function isNull(obj) {
+  return obj === null;
+}
+
+module.exports = isNull;

landvex/node_modules/underscore/cjs/isNumber.js

@@ -0,0 +1,5 @@
+var _tagTester = require('./_tagTester.js');
+
+var isNumber = _tagTester('Number');
+
+module.exports = isNumber;

landvex/node_modules/underscore/cjs/isObject.js

@@ -0,0 +1,7 @@
+// Is a given variable an object?
+function isObject(obj) {
+  var type = typeof obj;
+  return type === 'function' || (type === 'object' && !!obj);
+}
+
+module.exports = isObject;

landvex/node_modules/underscore/cjs/isRegExp.js

@@ -0,0 +1,5 @@
+var _tagTester = require('./_tagTester.js');
+
+var isRegExp = _tagTester('RegExp');
+
+module.exports = isRegExp;

landvex/node_modules/underscore/cjs/isSet.js

@@ -0,0 +1,7 @@
+var _tagTester = require('./_tagTester.js');
+var _stringTagBug = require('./_stringTagBug.js');
+var _methodFingerprint = require('./_methodFingerprint.js');
+
+var isSet = _stringTagBug.isIE11 ? _methodFingerprint.ie11fingerprint(_methodFingerprint.setMethods) : _tagTester('Set');
+
+module.exports = isSet;

landvex/node_modules/underscore/cjs/isString.js

@@ -0,0 +1,5 @@
+var _tagTester = require('./_tagTester.js');
+
+var isString = _tagTester('String');
+
+module.exports = isString;

landvex/node_modules/underscore/cjs/isSymbol.js

@@ -0,0 +1,5 @@
+var _tagTester = require('./_tagTester.js');
+
+var isSymbol = _tagTester('Symbol');
+
+module.exports = isSymbol;

landvex/node_modules/underscore/cjs/isTypedArray.js

@@ -0,0 +1,17 @@
+var _setup = require('./_setup.js');
+var isDataView = require('./isDataView.js');
+var constant = require('./constant.js');
+var _isBufferLike = require('./_isBufferLike.js');
+
+// Is a given value a typed array?
+var typedArrayPattern = /\[object ((I|Ui)nt(8|16|32)|Float(32|64)|Uint8Clamped|Big(I|Ui)nt64)Array\]/;
+function isTypedArray(obj) {
+  // `ArrayBuffer.isView` is the most future-proof, so use it when available.
+  // Otherwise, fall back on the above regular expression.
+  return _setup.nativeIsView ? (_setup.nativeIsView(obj) && !isDataView(obj)) :
+                _isBufferLike(obj) && typedArrayPattern.test(_setup.toString.call(obj));
+}
+
+var isTypedArray$1 = _setup.supportsArrayBuffer ? isTypedArray : constant(false);
+
+module.exports = isTypedArray$1;

landvex/node_modules/underscore/cjs/isUndefined.js

@@ -0,0 +1,6 @@
+// Is a given variable undefined?
+function isUndefined(obj) {
+  return obj === void 0;
+}
+
+module.exports = isUndefined;

landvex/node_modules/underscore/cjs/isWeakMap.js

@@ -0,0 +1,7 @@
+var _tagTester = require('./_tagTester.js');
+var _stringTagBug = require('./_stringTagBug.js');
+var _methodFingerprint = require('./_methodFingerprint.js');
+
+var isWeakMap = _stringTagBug.isIE11 ? _methodFingerprint.ie11fingerprint(_methodFingerprint.weakMapMethods) : _tagTester('WeakMap');
+
+module.exports = isWeakMap;

landvex/node_modules/underscore/cjs/isWeakSet.js

@@ -0,0 +1,5 @@
+var _tagTester = require('./_tagTester.js');
+
+var isWeakSet = _tagTester('WeakSet');
+
+module.exports = isWeakSet;

landvex/node_modules/underscore/cjs/iteratee.js

@@ -0,0 +1,12 @@
+var underscore = require('./underscore.js');
+var _baseIteratee = require('./_baseIteratee.js');
+
+// External wrapper for our callback generator. Users may customize
+// `_.iteratee` if they want additional predicate/iteratee shorthand styles.
+// This abstraction hides the internal-only `argCount` argument.
+function iteratee(value, context) {
+  return _baseIteratee(value, context, Infinity);
+}
+underscore.iteratee = iteratee;
+
+module.exports = iteratee;

landvex/node_modules/underscore/cjs/keys.js

@@ -0,0 +1,18 @@
+var isObject = require('./isObject.js');
+var _setup = require('./_setup.js');
+var _has = require('./_has.js');
+var _collectNonEnumProps = require('./_collectNonEnumProps.js');
+
+// Retrieve the names of an object's own properties.
+// Delegates to **ECMAScript 5**'s native `Object.keys`.
+function keys(obj) {
+  if (!isObject(obj)) return [];
+  if (_setup.nativeKeys) return _setup.nativeKeys(obj);
+  var keys = [];
+  for (var key in obj) if (_has(obj, key)) keys.push(key);
+  // Ahem, IE < 9.
+  if (_setup.hasEnumBug) _collectNonEnumProps(obj, keys);
+  return keys;
+}
+
+module.exports = keys;

landvex/node_modules/underscore/cjs/last.js

@@ -0,0 +1,11 @@
+var rest = require('./rest.js');
+
+// Get the last element of an array. Passing **n** will return the last N
+// values in the array.
+function last(array, n, guard) {
+  if (array == null || array.length < 1) return n == null || guard ? void 0 : [];
+  if (n == null || guard) return array[array.length - 1];
+  return rest(array, Math.max(0, array.length - n));
+}
+
+module.exports = last;

landvex/node_modules/underscore/cjs/lastIndexOf.js

@@ -0,0 +1,8 @@
+var findLastIndex = require('./findLastIndex.js');
+var _createIndexFinder = require('./_createIndexFinder.js');
+
+// Return the position of the last occurrence of an item in an array,
+// or -1 if the item is not included in the array.
+var lastIndexOf = _createIndexFinder(-1, findLastIndex);
+
+module.exports = lastIndexOf;

landvex/node_modules/underscore/cjs/map.js

@@ -0,0 +1,18 @@
+var _cb = require('./_cb.js');
+var _isArrayLike = require('./_isArrayLike.js');
+var keys = require('./keys.js');
+
+// Return the results of applying the iteratee to each element.
+function map(obj, iteratee, context) {
+  iteratee = _cb(iteratee, context);
+  var _keys = !_isArrayLike(obj) && keys(obj),
+      length = (_keys || obj).length,
+      results = Array(length);
+  for (var index = 0; index < length; index++) {
+    var currentKey = _keys ? _keys[index] : index;
+    results[index] = iteratee(obj[currentKey], currentKey, obj);
+  }
+  return results;
+}
+
+module.exports = map;

landvex/node_modules/underscore/cjs/mapObject.js

@@ -0,0 +1,18 @@
+var _cb = require('./_cb.js');
+var keys = require('./keys.js');
+
+// Returns the results of applying the `iteratee` to each element of `obj`.
+// In contrast to `_.map` it returns an object.
+function mapObject(obj, iteratee, context) {
+  iteratee = _cb(iteratee, context);
+  var _keys = keys(obj),
+      length = _keys.length,
+      results = {};
+  for (var index = 0; index < length; index++) {
+    var currentKey = _keys[index];
+    results[currentKey] = iteratee(obj[currentKey], currentKey, obj);
+  }
+  return results;
+}
+
+module.exports = mapObject;

landvex/node_modules/underscore/cjs/matcher.js

@@ -0,0 +1,13 @@
+var extendOwn = require('./extendOwn.js');
+var isMatch = require('./isMatch.js');
+
+// Returns a predicate for checking whether an object has a given set of
+// `key:value` pairs.
+function matcher(attrs) {
+  attrs = extendOwn({}, attrs);
+  return function(obj) {
+    return isMatch(obj, attrs);
+  };
+}
+
+module.exports = matcher;

landvex/node_modules/underscore/cjs/max.js

@@ -0,0 +1,31 @@
+var _isArrayLike = require('./_isArrayLike.js');
+var values = require('./values.js');
+var _cb = require('./_cb.js');
+var each = require('./each.js');
+
+// Return the maximum element (or element-based computation).
+function max(obj, iteratee, context) {
+  var result = -Infinity, lastComputed = -Infinity,
+      value, computed;
+  if (iteratee == null || (typeof iteratee == 'number' && typeof obj[0] != 'object' && obj != null)) {
+    obj = _isArrayLike(obj) ? obj : values(obj);
+    for (var i = 0, length = obj.length; i < length; i++) {
+      value = obj[i];
+      if (value != null && value > result) {
+        result = value;
+      }
+    }
+  } else {
+    iteratee = _cb(iteratee, context);
+    each(obj, function(v, index, list) {
+      computed = iteratee(v, index, list);
+      if (computed > lastComputed || (computed === -Infinity && result === -Infinity)) {
+        result = v;
+        lastComputed = computed;
+      }
+    });
+  }
+  return result;
+}
+
+module.exports = max;

landvex/node_modules/underscore/cjs/memoize.js

@@ -0,0 +1,15 @@
+var _has = require('./_has.js');
+
+// Memoize an expensive function by storing its results.
+function memoize(func, hasher) {
+  var memoize = function(key) {
+    var cache = memoize.cache;
+    var address = '' + (hasher ? hasher.apply(this, arguments) : key);
+    if (!_has(cache, address)) cache[address] = func.apply(this, arguments);
+    return cache[address];
+  };
+  memoize.cache = {};
+  return memoize;
+}
+
+module.exports = memoize;

landvex/node_modules/underscore/cjs/min.js

@@ -0,0 +1,31 @@
+var _isArrayLike = require('./_isArrayLike.js');
+var values = require('./values.js');
+var _cb = require('./_cb.js');
+var each = require('./each.js');
+
+// Return the minimum element (or element-based computation).
+function min(obj, iteratee, context) {
+  var result = Infinity, lastComputed = Infinity,
+      value, computed;
+  if (iteratee == null || (typeof iteratee == 'number' && typeof obj[0] != 'object' && obj != null)) {
+    obj = _isArrayLike(obj) ? obj : values(obj);
+    for (var i = 0, length = obj.length; i < length; i++) {
+      value = obj[i];
+      if (value != null && value < result) {
+        result = value;
+      }
+    }
+  } else {
+    iteratee = _cb(iteratee, context);
+    each(obj, function(v, index, list) {
+      computed = iteratee(v, index, list);
+      if (computed < lastComputed || (computed === Infinity && result === Infinity)) {
+        result = v;
+        lastComputed = computed;
+      }
+    });
+  }
+  return result;
+}
+
+module.exports = min;

landvex/node_modules/underscore/cjs/mixin.js

@@ -0,0 +1,20 @@
+var underscore = require('./underscore.js');
+var each = require('./each.js');
+var functions = require('./functions.js');
+var _setup = require('./_setup.js');
+var _chainResult = require('./_chainResult.js');
+
+// Add your own custom functions to the Underscore object.
+function mixin(obj) {
+  each(functions(obj), function(name) {
+    var func = underscore[name] = obj[name];
+    underscore.prototype[name] = function() {
+      var args = [this._wrapped];
+      _setup.push.apply(args, arguments);
+      return _chainResult(this, func.apply(underscore, args));
+    };
+  });
+  return underscore;
+}
+
+module.exports = mixin;

landvex/node_modules/underscore/cjs/negate.js

@@ -0,0 +1,8 @@
+// Returns a negated version of the passed-in predicate.
+function negate(predicate) {
+  return function() {
+    return !predicate.apply(this, arguments);
+  };
+}
+
+module.exports = negate;

landvex/node_modules/underscore/cjs/noop.js

@@ -0,0 +1,4 @@
+// Predicate-generating function. Often useful outside of Underscore.
+function noop(){}
+
+module.exports = noop;

landvex/node_modules/underscore/cjs/now.js

@@ -0,0 +1,6 @@
+// A (possibly faster) way to get the current timestamp as an integer.
+var now = Date.now || function() {
+  return new Date().getTime();
+};
+
+module.exports = now;

landvex/node_modules/underscore/cjs/object.js

@@ -0,0 +1,18 @@
+var _getLength = require('./_getLength.js');
+
+// Converts lists into objects. Pass either a single array of `[key, value]`
+// pairs, or two parallel arrays of the same length -- one of keys, and one of
+// the corresponding values. Passing by pairs is the reverse of `_.pairs`.
+function object(list, values) {
+  var result = {};
+  for (var i = 0, length = _getLength(list); i < length; i++) {
+    if (values) {
+      result[list[i]] = values[i];
+    } else {
+      result[list[i][0]] = list[i][1];
+    }
+  }
+  return result;
+}
+
+module.exports = object;

landvex/node_modules/underscore/cjs/omit.js

@@ -0,0 +1,24 @@
+var restArguments = require('./restArguments.js');
+var isFunction = require('./isFunction.js');
+var negate = require('./negate.js');
+var map = require('./map.js');
+var _flatten = require('./_flatten.js');
+var contains = require('./contains.js');
+var pick = require('./pick.js');
+
+// Return a copy of the object without the disallowed properties.
+var omit = restArguments(function(obj, keys) {
+  var iteratee = keys[0], context;
+  if (isFunction(iteratee)) {
+    iteratee = negate(iteratee);
+    if (keys.length > 1) context = keys[1];
+  } else {
+    keys = map(_flatten(keys, false, false), String);
+    iteratee = function(value, key) {
+      return !contains(keys, key);
+    };
+  }
+  return pick(obj, iteratee, context);
+});
+
+module.exports = omit;

landvex/node_modules/underscore/cjs/once.js

@@ -0,0 +1,8 @@
+var partial = require('./partial.js');
+var before = require('./before.js');
+
+// Returns a function that will be executed at most one time, no matter how
+// often you call it. Useful for lazy initialization.
+var once = partial(before, 2);
+
+module.exports = once;

landvex/node_modules/underscore/cjs/pairs.js

@@ -0,0 +1,15 @@
+var keys = require('./keys.js');
+
+// Convert an object into a list of `[key, value]` pairs.
+// The opposite of `_.object` with one argument.
+function pairs(obj) {
+  var _keys = keys(obj);
+  var length = _keys.length;
+  var pairs = Array(length);
+  for (var i = 0; i < length; i++) {
+    pairs[i] = [_keys[i], obj[_keys[i]]];
+  }
+  return pairs;
+}
+
+module.exports = pairs;

landvex/node_modules/underscore/cjs/partial.js

@@ -0,0 +1,25 @@
+var restArguments = require('./restArguments.js');
+var _executeBound = require('./_executeBound.js');
+var underscore = require('./underscore.js');
+
+// Partially apply a function by creating a version that has had some of its
+// arguments pre-filled, without changing its dynamic `this` context. `_` acts
+// as a placeholder by default, allowing any combination of arguments to be
+// pre-filled. Set `_.partial.placeholder` for a custom placeholder argument.
+var partial = restArguments(function(func, boundArgs) {
+  var placeholder = partial.placeholder;
+  var bound = function() {
+    var position = 0, length = boundArgs.length;
+    var args = Array(length);
+    for (var i = 0; i < length; i++) {
+      args[i] = boundArgs[i] === placeholder ? arguments[position++] : boundArgs[i];
+    }
+    while (position < arguments.length) args.push(arguments[position++]);
+    return _executeBound(func, bound, this, this, args);
+  };
+  return bound;
+});
+
+partial.placeholder = underscore;
+
+module.exports = partial;

landvex/node_modules/underscore/cjs/partition.js

@@ -0,0 +1,9 @@
+var _group = require('./_group.js');
+
+// Split a collection into two arrays: one whose elements all pass the given
+// truth test, and one whose elements all do not pass the truth test.
+var partition = _group(function(result, value, pass) {
+  result[pass ? 0 : 1].push(value);
+}, true);
+
+module.exports = partition;

landvex/node_modules/underscore/cjs/pick.js

@@ -0,0 +1,28 @@
+var restArguments = require('./restArguments.js');
+var isFunction = require('./isFunction.js');
+var _optimizeCb = require('./_optimizeCb.js');
+var allKeys = require('./allKeys.js');
+var _keyInObj = require('./_keyInObj.js');
+var _flatten = require('./_flatten.js');
+
+// Return a copy of the object only containing the allowed properties.
+var pick = restArguments(function(obj, keys) {
+  var result = {}, iteratee = keys[0];
+  if (obj == null) return result;
+  if (isFunction(iteratee)) {
+    if (keys.length > 1) iteratee = _optimizeCb(iteratee, keys[1]);
+    keys = allKeys(obj);
+  } else {
+    iteratee = _keyInObj;
+    keys = _flatten(keys, false, false);
+    obj = Object(obj);
+  }
+  for (var i = 0, length = keys.length; i < length; i++) {
+    var key = keys[i];
+    var value = obj[key];
+    if (iteratee(value, key, obj)) result[key] = value;
+  }
+  return result;
+});
+
+module.exports = pick;

landvex/node_modules/underscore/cjs/pipe.js

@@ -0,0 +1,12 @@
+var restArguments = require('./restArguments.js');
+var reduce = require('./reduce.js');
+
+function nextValue(previous, func) {
+  return func(previous);
+}
+
+var pipe = restArguments(function(value, funcs) {
+  return reduce(funcs, nextValue, value);
+});
+
+module.exports = pipe;

landvex/node_modules/underscore/cjs/pluck.js

@@ -0,0 +1,9 @@
+var map = require('./map.js');
+var property = require('./property.js');
+
+// Convenience version of a common use case of `_.map`: fetching a property.
+function pluck(obj, key) {
+  return map(obj, property(key));
+}
+
+module.exports = pluck;

landvex/node_modules/underscore/cjs/property.js

@@ -0,0 +1,13 @@
+var _deepGet = require('./_deepGet.js');
+var _toPath = require('./_toPath.js');
+
+// Creates a function that, when passed an object, will traverse that object’s
+// properties down the given `path`, specified as an array of keys or indices.
+function property(path) {
+  path = _toPath(path);
+  return function(obj) {
+    return _deepGet(obj, path);
+  };
+}
+
+module.exports = property;

landvex/node_modules/underscore/cjs/propertyOf.js

@@ -0,0 +1,12 @@
+var noop = require('./noop.js');
+var get = require('./get.js');
+
+// Generates a function for a given object that returns a given property.
+function propertyOf(obj) {
+  if (obj == null) return noop;
+  return function(path) {
+    return get(obj, path);
+  };
+}
+
+module.exports = propertyOf;

landvex/node_modules/underscore/cjs/random.js

@@ -0,0 +1,10 @@
+// Return a random integer between `min` and `max` (inclusive).
+function random(min, max) {
+  if (max == null) {
+    max = min;
+    min = 0;
+  }
+  return min + Math.floor(Math.random() * (max - min + 1));
+}
+
+module.exports = random;

landvex/node_modules/underscore/cjs/range.js

@@ -0,0 +1,23 @@
+// Generate an integer Array containing an arithmetic progression. A port of
+// the native Python `range()` function. See
+// [the Python documentation](https://docs.python.org/library/functions.html#range).
+function range(start, stop, step) {
+  if (stop == null) {
+    stop = start || 0;
+    start = 0;
+  }
+  if (!step) {
+    step = stop < start ? -1 : 1;
+  }
+
+  var length = Math.max(Math.ceil((stop - start) / step), 0);
+  var range = Array(length);
+
+  for (var idx = 0; idx < length; idx++, start += step) {
+    range[idx] = start;
+  }
+
+  return range;
+}
+
+module.exports = range;

landvex/node_modules/underscore/cjs/reduce.js

@@ -0,0 +1,7 @@
+var _createReduce = require('./_createReduce.js');
+
+// **Reduce** builds up a single result from a list of values, aka `inject`,
+// or `foldl`.
+var reduce = _createReduce(1);
+
+module.exports = reduce;

landvex/node_modules/underscore/cjs/reduceRight.js

@@ -0,0 +1,6 @@
+var _createReduce = require('./_createReduce.js');
+
+// The right-associative version of reduce, also known as `foldr`.
+var reduceRight = _createReduce(-1);
+
+module.exports = reduceRight;

landvex/node_modules/underscore/cjs/reject.js

@@ -0,0 +1,10 @@
+var filter = require('./filter.js');
+var negate = require('./negate.js');
+var _cb = require('./_cb.js');
+
+// Return all the elements for which a truth test fails.
+function reject(obj, predicate, context) {
+  return filter(obj, negate(_cb(predicate)), context);
+}
+
+module.exports = reject;

landvex/node_modules/underscore/cjs/rest.js

@@ -0,0 +1,10 @@
+var _setup = require('./_setup.js');
+
+// Returns everything but the first entry of the `array`. Especially useful on
+// the `arguments` object. Passing an **n** will return the rest N values in the
+// `array`.
+function rest(array, n, guard) {
+  return _setup.slice.call(array, n == null || guard ? 1 : n);
+}
+
+module.exports = rest;

landvex/node_modules/underscore/cjs/restArguments.js

@@ -0,0 +1,29 @@
+// Some functions take a variable number of arguments, or a few expected
+// arguments at the beginning and then a variable number of values to operate
+// on. This helper accumulates all remaining arguments past the function’s
+// argument length (or an explicit `startIndex`), into an array that becomes
+// the last argument. Similar to ES6’s "rest parameter".
+function restArguments(func, startIndex) {
+  startIndex = startIndex == null ? func.length - 1 : +startIndex;
+  return function() {
+    var length = Math.max(arguments.length - startIndex, 0),
+        rest = Array(length),
+        index = 0;
+    for (; index < length; index++) {
+      rest[index] = arguments[index + startIndex];
+    }
+    switch (startIndex) {
+      case 0: return func.call(this, rest);
+      case 1: return func.call(this, arguments[0], rest);
+      case 2: return func.call(this, arguments[0], arguments[1], rest);
+    }
+    var args = Array(startIndex + 1);
+    for (index = 0; index < startIndex; index++) {
+      args[index] = arguments[index];
+    }
+    args[startIndex] = rest;
+    return func.apply(this, args);
+  };
+}
+
+module.exports = restArguments;

landvex/node_modules/underscore/cjs/result.js

@@ -0,0 +1,24 @@
+var isFunction = require('./isFunction.js');
+var _toPath = require('./_toPath.js');
+
+// Traverses the children of `obj` along `path`. If a child is a function, it
+// is invoked with its parent as context. Returns the value of the final
+// child, or `fallback` if any child is undefined.
+function result(obj, path, fallback) {
+  path = _toPath(path);
+  var length = path.length;
+  if (!length) {
+    return isFunction(fallback) ? fallback.call(obj) : fallback;
+  }
+  for (var i = 0; i < length; i++) {
+    var prop = obj == null ? void 0 : obj[path[i]];
+    if (prop === void 0) {
+      prop = fallback;
+      i = length; // Ensure we don't continue iterating.
+    }
+    obj = isFunction(prop) ? prop.call(obj) : prop;
+  }
+  return obj;
+}
+
+module.exports = result;

landvex/node_modules/underscore/cjs/sample.js

@@ -0,0 +1,29 @@
+var _isArrayLike = require('./_isArrayLike.js');
+var values = require('./values.js');
+var _getLength = require('./_getLength.js');
+var random = require('./random.js');
+var toArray = require('./toArray.js');
+
+// Sample **n** random values from a collection using the modern version of the
+// [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher–Yates_shuffle).
+// If **n** is not specified, returns a single random element.
+// The internal `guard` argument allows it to work with `_.map`.
+function sample(obj, n, guard) {
+  if (n == null || guard) {
+    if (!_isArrayLike(obj)) obj = values(obj);
+    return obj[random(obj.length - 1)];
+  }
+  var sample = toArray(obj);
+  var length = _getLength(sample);
+  n = Math.max(Math.min(n, length), 0);
+  var last = length - 1;
+  for (var index = 0; index < n; index++) {
+    var rand = random(index, last);
+    var temp = sample[index];
+    sample[index] = sample[rand];
+    sample[rand] = temp;
+  }
+  return sample.slice(0, n);
+}
+
+module.exports = sample;

landvex/node_modules/underscore/cjs/shuffle.js

@@ -0,0 +1,8 @@
+var sample = require('./sample.js');
+
+// Shuffle a collection.
+function shuffle(obj) {
+  return sample(obj, Infinity);
+}
+
+module.exports = shuffle;

landvex/node_modules/underscore/cjs/size.js

@@ -0,0 +1,10 @@
+var _isArrayLike = require('./_isArrayLike.js');
+var keys = require('./keys.js');
+
+// Return the number of elements in a collection.
+function size(obj) {
+  if (obj == null) return 0;
+  return _isArrayLike(obj) ? obj.length : keys(obj).length;
+}
+
+module.exports = size;

landvex/node_modules/underscore/cjs/some.js

@@ -0,0 +1,17 @@
+var _cb = require('./_cb.js');
+var _isArrayLike = require('./_isArrayLike.js');
+var keys = require('./keys.js');
+
+// Determine if at least one element in the object passes a truth test.
+function some(obj, predicate, context) {
+  predicate = _cb(predicate, context);
+  var _keys = !_isArrayLike(obj) && keys(obj),
+      length = (_keys || obj).length;
+  for (var index = 0; index < length; index++) {
+    var currentKey = _keys ? _keys[index] : index;
+    if (predicate(obj[currentKey], currentKey, obj)) return true;
+  }
+  return false;
+}
+
+module.exports = some;

landvex/node_modules/underscore/cjs/sortBy.js

@@ -0,0 +1,26 @@
+var _cb = require('./_cb.js');
+var pluck = require('./pluck.js');
+var map = require('./map.js');
+
+// Sort the object's values by a criterion produced by an iteratee.
+function sortBy(obj, iteratee, context) {
+  var index = 0;
+  iteratee = _cb(iteratee, context);
+  return pluck(map(obj, function(value, key, list) {
+    return {
+      value: value,
+      index: index++,
+      criteria: iteratee(value, key, list)
+    };
+  }).sort(function(left, right) {
+    var a = left.criteria;
+    var b = right.criteria;
+    if (a !== b) {
+      if (a > b || a === void 0) return 1;
+      if (a < b || b === void 0) return -1;
+    }
+    return left.index - right.index;
+  }), 'value');
+}
+
+module.exports = sortBy;

landvex/node_modules/underscore/cjs/sortedIndex.js

@@ -0,0 +1,17 @@
+var _cb = require('./_cb.js');
+var _getLength = require('./_getLength.js');
+
+// Use a comparator function to figure out the smallest index at which
+// an object should be inserted so as to maintain order. Uses binary search.
+function sortedIndex(array, obj, iteratee, context) {
+  iteratee = _cb(iteratee, context, 1);
+  var value = iteratee(obj);
+  var low = 0, high = _getLength(array);
+  while (low < high) {
+    var mid = Math.floor((low + high) / 2);
+    if (iteratee(array[mid]) < value) low = mid + 1; else high = mid;
+  }
+  return low;
+}
+
+module.exports = sortedIndex;

landvex/node_modules/underscore/cjs/tap.js

@@ -0,0 +1,9 @@
+// Invokes `interceptor` with the `obj` and then returns `obj`.
+// The primary purpose of this method is to "tap into" a method chain, in
+// order to perform operations on intermediate results within the chain.
+function tap(obj, interceptor) {
+  interceptor(obj);
+  return obj;
+}
+
+module.exports = tap;

landvex/node_modules/underscore/cjs/template.js

@@ -0,0 +1,103 @@
+var defaults = require('./defaults.js');
+var underscore = require('./underscore.js');
+require('./templateSettings.js');
+
+// When customizing `_.templateSettings`, if you don't want to define an
+// interpolation, evaluation or escaping regex, we need one that is
+// guaranteed not to match.
+var noMatch = /(.)^/;
+
+// Certain characters need to be escaped so that they can be put into a
+// string literal.
+var escapes = {
+  "'": "'",
+  '\\': '\\',
+  '\r': 'r',
+  '\n': 'n',
+  '\u2028': 'u2028',
+  '\u2029': 'u2029'
+};
+
+var escapeRegExp = /\\|'|\r|\n|\u2028|\u2029/g;
+
+function escapeChar(match) {
+  return '\\' + escapes[match];
+}
+
+// In order to prevent third-party code injection through
+// `_.templateSettings.variable`, we test it against the following regular
+// expression. It is intentionally a bit more liberal than just matching valid
+// identifiers, but still prevents possible loopholes through defaults or
+// destructuring assignment.
+var bareIdentifier = /^\s*(\w|\$)+\s*$/;
+
+// JavaScript micro-templating, similar to John Resig's implementation.
+// Underscore templating handles arbitrary delimiters, preserves whitespace,
+// and correctly escapes quotes within interpolated code.
+// NB: `oldSettings` only exists for backwards compatibility.
+function template(text, settings, oldSettings) {
+  if (!settings && oldSettings) settings = oldSettings;
+  settings = defaults({}, settings, underscore.templateSettings);
+
+  // Combine delimiters into one regular expression via alternation.
+  var matcher = RegExp([
+    (settings.escape || noMatch).source,
+    (settings.interpolate || noMatch).source,
+    (settings.evaluate || noMatch).source
+  ].join('|') + '|$', 'g');
+
+  // Compile the template source, escaping string literals appropriately.
+  var index = 0;
+  var source = "__p+='";
+  text.replace(matcher, function(match, escape, interpolate, evaluate, offset) {
+    source += text.slice(index, offset).replace(escapeRegExp, escapeChar);
+    index = offset + match.length;
+
+    if (escape) {
+      source += "'+\n((__t=(" + escape + "))==null?'':_.escape(__t))+\n'";
+    } else if (interpolate) {
+      source += "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'";
+    } else if (evaluate) {
+      source += "';\n" + evaluate + "\n__p+='";
+    }
+
+    // Adobe VMs need the match returned to produce the correct offset.
+    return match;
+  });
+  source += "';\n";
+
+  var argument = settings.variable;
+  if (argument) {
+    // Insure against third-party code injection. (CVE-2021-23358)
+    if (!bareIdentifier.test(argument)) throw new Error(
+      'variable is not a bare identifier: ' + argument
+    );
+  } else {
+    // If a variable is not specified, place data values in local scope.
+    source = 'with(obj||{}){\n' + source + '}\n';
+    argument = 'obj';
+  }
+
+  source = "var __t,__p='',__j=Array.prototype.join," +
+    "print=function(){__p+=__j.call(arguments,'');};\n" +
+    source + 'return __p;\n';
+
+  var render;
+  try {
+    render = new Function(argument, '_', source);
+  } catch (e) {
+    e.source = source;
+    throw e;
+  }
+
+  var template = function(data) {
+    return render.call(this, data, underscore);
+  };
+
+  // Provide the compiled source as a convenience for precompilation.
+  template.source = 'function(' + argument + '){\n' + source + '}';
+
+  return template;
+}
+
+module.exports = template;

landvex/node_modules/underscore/cjs/templateSettings.js

@@ -0,0 +1,11 @@
+var underscore = require('./underscore.js');
+
+// By default, Underscore uses ERB-style template delimiters. Change the
+// following template settings to use alternative delimiters.
+var templateSettings = underscore.templateSettings = {
+  evaluate: /<%([\s\S]+?)%>/g,
+  interpolate: /<%=([\s\S]+?)%>/g,
+  escape: /<%-([\s\S]+?)%>/g
+};
+
+module.exports = templateSettings;

landvex/node_modules/underscore/cjs/throttle.js

@@ -0,0 +1,49 @@
+var now = require('./now.js');
+
+// Returns a function, that, when invoked, will only be triggered at most once
+// during a given window of time. Normally, the throttled function will run
+// as much as it can, without ever going more than once per `wait` duration;
+// but if you'd like to disable the execution on the leading edge, pass
+// `{leading: false}`. To disable execution on the trailing edge, ditto.
+function throttle(func, wait, options) {
+  var timeout, context, args, result;
+  var previous = 0;
+  if (!options) options = {};
+
+  var later = function() {
+    previous = options.leading === false ? 0 : now();
+    timeout = null;
+    result = func.apply(context, args);
+    if (!timeout) context = args = null;
+  };
+
+  var throttled = function() {
+    var _now = now();
+    if (!previous && options.leading === false) previous = _now;
+    var remaining = wait - (_now - previous);
+    context = this;
+    args = arguments;
+    if (remaining <= 0 || remaining > wait) {
+      if (timeout) {
+        clearTimeout(timeout);
+        timeout = null;
+      }
+      previous = _now;
+      result = func.apply(context, args);
+      if (!timeout) context = args = null;
+    } else if (!timeout && options.trailing !== false) {
+      timeout = setTimeout(later, remaining);
+    }
+    return result;
+  };
+
+  throttled.cancel = function() {
+    clearTimeout(timeout);
+    previous = 0;
+    timeout = context = args = null;
+  };
+
+  return throttled;
+}
+
+module.exports = throttle;

landvex/node_modules/underscore/cjs/times.js

@@ -0,0 +1,11 @@
+var _optimizeCb = require('./_optimizeCb.js');
+
+// Run a function **n** times.
+function times(n, iteratee, context) {
+  var accum = Array(Math.max(0, n));
+  iteratee = _optimizeCb(iteratee, context, 1);
+  for (var i = 0; i < n; i++) accum[i] = iteratee(i);
+  return accum;
+}
+
+module.exports = times;

landvex/node_modules/underscore/cjs/toArray.js

@@ -0,0 +1,22 @@
+var isArray = require('./isArray.js');
+var _setup = require('./_setup.js');
+var isString = require('./isString.js');
+var _isArrayLike = require('./_isArrayLike.js');
+var map = require('./map.js');
+var identity = require('./identity.js');
+var values = require('./values.js');
+
+// Safely create a real, live array from anything iterable.
+var reStrSymbol = /[^\ud800-\udfff]|[\ud800-\udbff][\udc00-\udfff]|[\ud800-\udfff]/g;
+function toArray(obj) {
+  if (!obj) return [];
+  if (isArray(obj)) return _setup.slice.call(obj);
+  if (isString(obj)) {
+    // Keep surrogate pair characters together.
+    return obj.match(reStrSymbol);
+  }
+  if (_isArrayLike(obj)) return map(obj, identity);
+  return values(obj);
+}
+
+module.exports = toArray;

landvex/node_modules/underscore/cjs/toPath.js

@@ -0,0 +1,11 @@
+var underscore = require('./underscore.js');
+var isArray = require('./isArray.js');
+
+// Normalize a (deep) property `path` to array.
+// Like `_.iteratee`, this function can be customized.
+function toPath(path) {
+  return isArray(path) ? path : [path];
+}
+underscore.toPath = toPath;
+
+module.exports = toPath;

landvex/node_modules/underscore/cjs/underscore-array-methods.js

@@ -0,0 +1,31 @@
+var underscore = require('./underscore.js');
+var each = require('./each.js');
+var _setup = require('./_setup.js');
+var _chainResult = require('./_chainResult.js');
+
+// Add all mutator `Array` functions to the wrapper.
+each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) {
+  var method = _setup.ArrayProto[name];
+  underscore.prototype[name] = function() {
+    var obj = this._wrapped;
+    if (obj != null) {
+      method.apply(obj, arguments);
+      if ((name === 'shift' || name === 'splice') && obj.length === 0) {
+        delete obj[0];
+      }
+    }
+    return _chainResult(this, obj);
+  };
+});
+
+// Add all accessor `Array` functions to the wrapper.
+each(['concat', 'join', 'slice'], function(name) {
+  var method = _setup.ArrayProto[name];
+  underscore.prototype[name] = function() {
+    var obj = this._wrapped;
+    if (obj != null) obj = method.apply(obj, arguments);
+    return _chainResult(this, obj);
+  };
+});
+
+module.exports = underscore;

landvex/node_modules/underscore/cjs/underscore.js

@@ -0,0 +1,27 @@
+var _setup = require('./_setup.js');
+
+// If Underscore is called as a function, it returns a wrapped object that can
+// be used OO-style. This wrapper holds altered versions of all functions added
+// through `_.mixin`. Wrapped objects may be chained.
+function _(obj) {
+  if (obj instanceof _) return obj;
+  if (!(this instanceof _)) return new _(obj);
+  this._wrapped = obj;
+}
+
+_.VERSION = _setup.VERSION;
+
+// Extracts the result from a wrapped and chained object.
+_.prototype.value = function() {
+  return this._wrapped;
+};
+
+// Provide unwrapping proxies for some methods used in engine operations
+// such as arithmetic and JSON stringification.
+_.prototype.valueOf = _.prototype.toJSON = _.prototype.value;
+
+_.prototype.toString = function() {
+  return String(this._wrapped);
+};
+
+module.exports = _;

landvex/node_modules/underscore/cjs/unescape.js

@@ -0,0 +1,7 @@
+var _createEscaper = require('./_createEscaper.js');
+var _unescapeMap = require('./_unescapeMap.js');
+
+// Function for unescaping strings from HTML interpolation.
+var _unescape = _createEscaper(_unescapeMap);
+
+module.exports = _unescape;

landvex/node_modules/underscore/cjs/union.js

@@ -0,0 +1,11 @@
+var restArguments = require('./restArguments.js');
+var uniq = require('./uniq.js');
+var _flatten = require('./_flatten.js');
+
+// Produce an array that contains the union: each distinct element from all of
+// the passed-in arrays.
+var union = restArguments(function(arrays) {
+  return uniq(_flatten(arrays, true, true));
+});
+
+module.exports = union;

landvex/node_modules/underscore/cjs/uniq.js

@@ -0,0 +1,38 @@
+var isBoolean = require('./isBoolean.js');
+var _cb = require('./_cb.js');
+var _getLength = require('./_getLength.js');
+var contains = require('./contains.js');
+
+// Produce a duplicate-free version of the array. If the array has already
+// been sorted, you have the option of using a faster algorithm.
+// The faster algorithm will not work with an iteratee if the iteratee
+// is not a one-to-one function, so providing an iteratee will disable
+// the faster algorithm.
+function uniq(array, isSorted, iteratee, context) {
+  if (!isBoolean(isSorted)) {
+    context = iteratee;
+    iteratee = isSorted;
+    isSorted = false;
+  }
+  if (iteratee != null) iteratee = _cb(iteratee, context);
+  var result = [];
+  var seen = [];
+  for (var i = 0, length = _getLength(array); i < length; i++) {
+    var value = array[i],
+        computed = iteratee ? iteratee(value, i, array) : value;
+    if (isSorted && !iteratee) {
+      if (!i || seen !== computed) result.push(value);
+      seen = computed;
+    } else if (iteratee) {
+      if (!contains(seen, computed)) {
+        seen.push(computed);
+        result.push(value);
+      }
+    } else if (!contains(result, value)) {
+      result.push(value);
+    }
+  }
+  return result;
+}
+
+module.exports = uniq;

landvex/node_modules/underscore/cjs/uniqueId.js

@@ -0,0 +1,9 @@
+// Generate a unique integer id (unique within the entire client session).
+// Useful for temporary DOM ids.
+var idCounter = 0;
+function uniqueId(prefix) {
+  var id = ++idCounter + '';
+  return prefix ? prefix + id : id;
+}
+
+module.exports = uniqueId;

landvex/node_modules/underscore/cjs/unzip.js

@@ -0,0 +1,17 @@
+var max = require('./max.js');
+var _getLength = require('./_getLength.js');
+var pluck = require('./pluck.js');
+
+// Complement of zip. Unzip accepts an array of arrays and groups
+// each array's elements on shared indices.
+function unzip(array) {
+  var length = (array && max(array, _getLength).length) || 0;
+  var result = Array(length);
+
+  for (var index = 0; index < length; index++) {
+    result[index] = pluck(array, index);
+  }
+  return result;
+}
+
+module.exports = unzip;

landvex/node_modules/underscore/cjs/values.js

@@ -0,0 +1,14 @@
+var keys = require('./keys.js');
+
+// Retrieve the values of an object's properties.
+function values(obj) {
+  var _keys = keys(obj);
+  var length = _keys.length;
+  var values = Array(length);
+  for (var i = 0; i < length; i++) {
+    values[i] = obj[_keys[i]];
+  }
+  return values;
+}
+
+module.exports = values;

landvex/node_modules/underscore/cjs/where.js

@@ -0,0 +1,10 @@
+var filter = require('./filter.js');
+var matcher = require('./matcher.js');
+
+// Convenience version of a common use case of `_.filter`: selecting only
+// objects containing specific `key:value` pairs.
+function where(obj, attrs) {
+  return filter(obj, matcher(attrs));
+}
+
+module.exports = where;

landvex/node_modules/underscore/cjs/without.js

@@ -0,0 +1,9 @@
+var restArguments = require('./restArguments.js');
+var difference = require('./difference.js');
+
+// Return a version of the array that does not contain the specified value(s).
+var without = restArguments(function(array, otherArrays) {
+  return difference(array, otherArrays);
+});
+
+module.exports = without;

landvex/node_modules/underscore/cjs/wrap.js

@@ -0,0 +1,10 @@
+var partial = require('./partial.js');
+
+// Returns the first function passed as an argument to the second,
+// allowing you to adjust arguments, run code before and after, and
+// conditionally execute the original function.
+function wrap(func, wrapper) {
+  return partial(wrapper, func);
+}
+
+module.exports = wrap;

landvex/node_modules/underscore/cjs/zip.js

@@ -0,0 +1,8 @@
+var restArguments = require('./restArguments.js');
+var unzip = require('./unzip.js');
+
+// Zip together multiple lists into a single array -- elements that share
+// an index go together.
+var zip = restArguments(unzip);
+
+module.exports = zip;