dev-api: add developer portal, OpenAPI spec, and Flatenbadet case study

- New /developers/ page with API docs, SDKs, pricing, use cases
- OpenAPI 3.0 spec for Orders, Missions, Photos, Analytics
- Case study: Glasskiosken i Flatenbadet — complete ROI analysis
- Updated /order/ with recurring missions and frequency dropdown

services/frilans-payout/node_modules/stackback/test.js

@@ -0,0 +1,24 @@
+var assert = require('assert');
+var stackback = require('./');
+
+test('capture', function() {
+    var err = new Error();
+    var stack = stackback(err);
+    assert.equal(stack[0].getFileName(), __filename);
+});
+
+// calling stackback on the same error twice should work
+test('multiple calls', function() {
+    var err = new Error();
+    var stack1 = stackback(err);
+    var stack2 = stackback(err);
+    assert.equal(stack1[0].getFileName(), __filename);
+    assert.deepEqual(stack1, stack2);
+});
+
+test('string', function() {
+    var err = new Error();
+    stackback(err);
+    assert.equal(typeof err.stack, 'string');
+});
+