iOS: Prevent stray non-expected rules/targets in Xcode-wrapper makefile

Change-Id: Ibef10ba174df25aa97fd986b51a62d6b7feb119e
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>
iOS: Add default QT_ARCH for configure tests to our own qt_config.prf

Setting QT_ARCH when empty is a workaround for a missing qconfig.pri,
since it hasn't been written yet by configure. As qconfig.pri is
loaded by the generic qt_config.prf, putting our workaround in
our own wrapper for qt_config makes sense, as it keeps the logic
close to where the original QT_ARCH is resolved.

Change-Id: I49ffc21cf5dea5ca5b6254ca8084a4dcdc359a72
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
iOS: Don't hard-code simulator and device architectures

Change-Id: Id5a370248b553b7393ec1b187bd34c0ab9f28496
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>
Cocoa: Allow popups to grab mouse and keyboard

According to the QWindow documentation this should happen regardless
of the window type. (It also mimics the current behavior on Linux and
Windows).

Change-Id: I1b0959ad8cf19bce452fd79a13b07d0a3a3c49e9
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>