BAC-144: Create JS script to send Lyrics PVs to the backend
Add unit tests
Unit tests:
* make $app a global for setup files inclusion
* more documentation
BAC-144: minor JS variable change
Merge pull request #600 from Wikia/bac-144

BAC-144: Create JS script to send Lyrics PVs to the backend
BAC-188: add backend for LyricFind PV tracking
BAC-188: log errors coming from API
BAC-188: add a separate class for tracking API
BAC-188: add a proper ID type prefix
BAC-188: unit test for tracking controller
Add WikiaBaseTest::mockClassStaticMethod helper to mock methods like Http::post
BAC-188: add unit test for parsing LyricFind API response
BAC-188: improve WikiaBaseTest::mockClassStaticMethod after a feedback from Federico
WikiaBaseTest: add an example for mockClassStaticMethod() method
BAC-188: code cleanup
BAC-188: force controller's response format to JSON
BAC-188: more debug logging
BAC-188: more unit test cases for API response
BAC-144: LyricFind tracking front-end updated with new URL
BAC-188: setup file cleanup