Cleaned up AppDelegate.m and fixed ability to start on the proper defaultUserVdot at startup
Removed previous segue stuff that wasn't needed anymore. The standard popToRootViewController and popToViewController work now. Also added action sheets for saving and deleting saved vdots.
made sure setting the current vDot is done as an NSInteger
intensity page to show a button to take you to the current VDOT
update 'save' button bar item to say 'done' when adding a new vdot