vv
added methods to calculate the score and give bonus points according to user precision. All labels are now updated in the updateLabels section. Rounds are counted and the start over button now resets all variables.
made viewcontroller a delegate of the alterview popup. implemented -(void) alterView:didDismissWithButtonIndex:  method of the protocol.
prettied up the UI. added a webview instead of a text field in the about view.
adapted layouts to fit correctly 3.5 and 4 inch displays