exercism/exercism.io — pull request #1648 by fluxusfrequency (2014-07-05 21:00:54+00:00)
Title: Add user mentioning in nitpicking form

- Add Users search API endpoint
- Add query_user API helper
- Test new API endpoint
- Add watch to data.body in Markdown Controller (Angular frontend)
- Test Markdown Controller
- Add atwho.js for user mention capability