iOS: Rename m_requestedGeometry to m_normalGeometry

Matches the wording using in QWidget.

Change-Id: Ifbb4e5ffa90b47a7c179cf9ec52cb46126d7bccc
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>
iOS: Rename QIOSWindow's backing view from EAGLView to QUIView

Matches the cocoa QNSView and highlights the relation to UIView.

Change-Id: Idcdb17bff994c1e0aef099400c21915a7041e44c
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>
iOS: Detect/handle cancellation of subset of touch points

Change-Id: I0d345d07fe62a8c7844333bf1eed9be6d6fa432f
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>
iOS: Cancel any active touches when destroying a QIOSWindow

Keeps the internal state of QtGui sane when it comes to which buttons
are active, etc.

Change-Id: Ic63e74d2546469e085ec46b74f4cf159dd409b07
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>