Remove fake screenshots from iOS project.
JCNotificatoinBannerPresenter: fix flip animation for landscape orientations.
JCNotificatoinBannerPresenter: fix screenshot rect calculation.
JCNotificatoinBannerPresenter: fix creating screenshots in landscape orientations.
JCNotificatoinBannerPresenter: throw in UIImage rotation extensions and fix rotating banner bg.
JCNotificatoinBannerPresenter: support portraitUpsideDown.
Demo: don't coverStatusBar when custom is on (preferred way for 3d transition).