Remove trailing comma
Merge pull request #271 from rcchan/remove-comma

Remove trailing comma
Use mongo.config instead of mongo.const
Link stylesheet in html
Merge pull request #272 from rcchan/config-dom

Remove DOM dependent configuration logic, store in mongo.config
Fix CORS issues
Simplify array parameter concat logic
[Temporary] Add OPTIONS to all MWS endpoints
Merge pull request #273 from rcchan/cors

Fix CORS issues