Merge pull request #1 from tmullaly/master

LoginActivity
LoginActivity: fix whitespace
MainActivity: Switch to LogIn activity
remove misc files
Copypasta the ZBar QR code reader example and integrate.
Make a proper MainActivity and navigate to other activities easily.

Old MainActivity is now PhotoActivity. Users access other intents
through large buttons.
PhotoActivity: Save multiple files in one folder

A temporary unorganized folder.
Keyboard should not appear for QR and Photo activities
Display items as a grid based gallery.
PhotoActivity: Clean up
PhotoActivity: Add missing adapter file.