Added some images to possibly use, and add credential validator for
passwords and username.
Added Credential Validator to check email and passwords
Major additions in DineOnRestaurantActivity to handle state. minor
changes and cleanups everywhere else
Added animation ability
Merge branch 'master' of https://github.com/blasv/DineOn into UI_Phase2

Conflicts:
	DineOnLibrary/src/uw/cse/dineon/library/Restaurant.java