Create README.md
Cleanup in one class.
Implemented sorting photos before displaying.
Implemented iPad interface
Corrected the error in the iPad UI: the button to link the master VC that slides to the left in portrait mode was not appearing when changing photos.
Some cleanup.
Fixed setter for barButton in iPad UI, according to Paul Hegarty's solution of summer 2012.
Add FlickrAPIKey.h to .gitignore