Don't build ANGLE while xcompile for QNX

Change-Id: Iacc0f4bb776943b21a94b52417a77112facad20f
Reviewed-by: Wolfgang Bremer <wbremer@blackberry.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Cocoa: Improve cursor setting.

Implement cursor setting in terms of [NSCursor set]
and [NSView cursorUpdate] using the window tracking
area.

Refactor cursor conversion into QCocoaCursor::
convertCursor. Rename QCoocaWindow::m_underMouseWindow
to m_enterLeaveTargetWindow since it's set according
to spesific enter/leave logic. Add m_windowUnderMouse
which tracks mouseEntered/mouseExited state.

Task-number: QTBUG-33961
Change-Id: Id5e12594f5db365e09c9926a4c08d748a9afb935
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
Android: Handle virtual keyboard visibility changes.

emitInputPanelVisibleChanged when virtual keyboard visibility is changed.

Task-number: QTBUG-34347

Change-Id: Iab7374db42ff8ce6f33dcc793b23f84d3c8692d5
Reviewed-by: Paul Olav Tvete <paul.tvete@digia.com>