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
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
BAC-984: addressing code review
Gracenote: settings constant once is enough

In most cases ;)
BAC-984: return 1x1 blank GIF instead of HTTP 204
LyricFind.Tracker: return instance of tracking pixel
BAC-984: add unit tests
BAC-984: improve an assert in JS unit test
Merge pull request #2075 from Wikia/bac-984-lyricfind-pv-tracking

BAC-984: improved LyricFind tracking