[Demo] Fixed never-ending activity indicator when no selections are made.
Use a global background queue
Added ability to set a limit on selections - Fixes #10
Changed cancelled to canceled (USA english)
Imported AssetsLibrary in source files
Removed DLog
Fixed a bug were a view was created every -layoutSubviews
[demo] disabled auto-rotation in demo scrollview.
[demo] cleaned up a few demo issues
Implemented 'selectedAssets' – Fixes #14
Added an optional delegate method called when selection limit met
[demo] added Podfile to demo project
[demo] implemented the selection limit delegate method
[demo] selection limit example, UI update.