Major refactoring and minor function changes

-Changed names of buttons on post registration screen
-Added "App Help" to that screen with full help options found on
registration page
-Updated files in images folder for Facebook submission
-Moved getDebugKeyhash to MainActivity so it is always run
-Consolidated ConstantValues into TwitterUtilities
-renamed androidMessages to sms_messages and makeUser to registration,
postRegistration to registration
-Refactored MakeUser so that there are no major inner classes, twitter
and registration upload are now their own files
-Added getters/setters to MakeUser to that those classes would work
-Other refactoring creating DialogUtilities, that handles opening all
information dialogs