Adds readme file.
Initial Commit
Changes device family target to iPad and deployment target to iOS 7.0. Enables support for all device orientations.
Adds SampleViewController and a button on main view controller to present it.
Adds NGModalPresentation category on UIViewController which provides an easy API to present view controllers modally not in full screen. Adds NGModalTransitioningDelegate and NGModalAnimationController which are used by NGModalPresentation category.
Adds present button to SampleViewController's view which presents modally another SampleViewController. This demonstrates iOS 7 bug when presenting modally from a presented modally view controller.
Adds NGPresentationViewController. A bug manifests while rotating the device.
Uses autoresizing mask to layout presentation view controller view to work around a bug during device rotation on iOS 7.