abstract drawer added
drawer choice added
3 view controllers contained in parent view controller
corrected undo/redo
typo
Saving and loading
moved load/save into parent controller
save/load moved into LoadManager.
Notification names constants
typos
added delete
added getFiles
added new my files view controller
new files view controller
added controllers
Added file cell, wiggle and edited storyboard for segue to drawing
screen
added nice zoom effect
loading files
added cocoa pods and UISS
Abstract classes for deleteable cells
adding delete