BAC-984: handle 206 response codes from LyricFind
Format trackid parameter for LyricFind API
Update unit tests
LyricFind: track all content namespaces
Log to a private log - lyricfind-tracking
Improve trackId sanitization
Cleanup
LyricFindTrackingService: use switch instead
DAR-2885: Fix for split mode by default and tile background
DAR-2885 | Changes after CR
LyricFind: emit debug HTTP response headers

Emit X-LyricFind-API-Code and X-LyricFind-API-Error
LyricFind: make it track monobook PV as well
LyricFind: tracking for WikiaMobile

@hakubo - please review
LyricFind: use NS_GRACENOTE constant
DAR-2885 Added unit test
BAC-984: addressing code review
Gracenote: settings constant once is enough

In most cases ;)
BAC-984: return 1x1 blank GIF instead of HTTP 204
DAR-2885: Used use strict only once
LyricFind.Tracker: return instance of tracking pixel