App Versioning

There is now a way for us to notify the user if there is a new app
version.
Added UIAlertView
If user clicks download we take them in a safari window to the back end
of their retail sight.
Merge branch 'master' of https://github.com/myersb/DealerInventoryImageManager

Conflicts:
	DealerInventoryImageManager/MainStoryboard.storyboard