remove old assets, small string fixes in Secret Language
add string and color constants for code Groups
add model for language groups, language blocks, feelings, and specify closet category for class
restore functionality of feeling collection cell using core data and fetched results controller
switch long press gesture recognizer to pan gesture recognizer on feelings collection view for smoother interactions
bug fix - forgot to change entity string when i switched name of class to Closet Category
remove one feeling from test data for simplicity
add todo for switching feeling blocks, not making user put one away before grabbing a new one