-added shake animation to user info view when invalid info is added
-eliminated the alert box when valid info is saved
-changed how colors are stored
-changed how the tab bar controller calls updates on each view controller
-reordered some control flow
-still has some random crashes due to asynchronous web calls (I think)
-bugfixes
-all twitter and Facebook buttons have color and correct backgrounds
-had to extend the UIImage class in order to do this
-email and phone images now change colors to match the theme