FIX - playlist to obey the new format that allows for tracks to appear in mulitple bundles
moved caching code away form TrackVC and refactored how Google Analytics around caching is logged.
adds a # of cached tracks check to the delete all button, tweaks UI
FIX - playlist problem arising from multiple instances of a single track.
DATA - tweaks
FIX - purchase track issue arising from the name change to entityIdentifier. TWEAK to GMCell truncation algorithm
FIX - unlock track animation when on the page of a track that has been unlocked via a group purchase. FIX - new! text color updates on color change.
Finalizing Glenda's track data, adding IAP PIs, segregate those tracks that are for future releases.
FIX - autolayout issue
DATA - adds Marcelo's bio
Adds invisible property to TrackGroups so that we can replace one group with another with a sub or superset of tracks. DATA - marcelo's bio
Adds indexing to AudioPlayer and correctly sets the index when a track is jumped to. Removes superfluous code from TrackVC. Logging tweaks
FIX - previous button is disabled upon app launch
REFACTOR - for clarity
FIX - track title is no longer truncated in the PlayerVC  on iPad
CLEANUP
update version and bundleVersion in prepration for submission