DATA - addition of new guides/tracks to GMIAPHelper and tweak to on product ID
DATA - addition of purchase all IAPs
FEATURE - adds notification handler to refresh the playlist after a purchase all tracks from one guide occurs. Refactors notifications in the class to be easier to find within the class
TWEAK - removes the height constraint on the purchaseAll button in preparation for the removal of that button upon purhcase.
DATA - added track.seconds for Glenda and Travis
ENHANCEMENT - now track seconds are set if they are different than reported by the player.currentItem
LOG - output of data.length after track is cached. This can be used to set the initial file size for new tracks
CLEANUP - removed unused method (that didn't work). Now track lengths are set when the playerItem becomes ready in the AudioPlayer class
FEATURE - guidedInfoVC now correctly displays the purhcase all button depending on state. MODIFICATIONS to guideInfoVC and related files