iOS 8, iPhone 6 / 6 Plus support

Added Xcode 6, iOS 8 and iPhone 6 / 6 Plus support

Bugfixes

• Fixed bug when setContentViewController:animated:YES would trigger viewWillAppear to fire twice

Menu view scale

Added an option to enable/disable menuViewController scaling while panning

Right menu support

• Support for a side menu on the right
• Bugfixes