Bump qtx11extras version to 5.3.0

Change-Id: Ia76fecdcc02044219fee9d2cd492f05630995000
Reviewed-by: David Faure <david.faure@kdab.com>
Merge remote-tracking branch 'origin/stable' into dev

Change-Id: I1a43928ab6b5c1458c1f662896e022b24bf38ee1
Merge remote-tracking branch 'origin/stable' into dev

Change-Id: I39296b426d6e7555db5087e720066fad02ffc5d3
Merge remote-tracking branch 'origin/stable' into dev

Change-Id: I1155f08deee98516e021a21c54132292d27aabdc
Merge remote-tracking branch 'origin/stable' into dev

Conflicts:
	.qmake.conf

Change-Id: Icab7fb1dd11851639a46b2cb211ded5df92a1dbe
Merge remote-tracking branch 'origin/stable' into dev

Conflicts:
	.qmake.conf

Change-Id: I9b3732bd9c128ec862b0b9a91881f44322142479
Use nativeResourceForIntegration "rootWindow" to get the appRootWindow

As the native interface can provide the root window it's better to use
that instead of going through QDesktopWidget.

Change-Id: I0a7b475b5ef2a802f603b29762bf2d9033dfa13d
Reviewed-by: David Faure <david.faure@kdab.com>
remove QtWidgets dependency

The module doesn't depend on QtWidgets any more.

Change-Id: Ic8036ec1ee53ef8b1a3bb6c827fb815f322865a2
Reviewed-by: Martin Gräßlin <mgraesslin@kde.org>
Reviewed-by: David Faure <david.faure@kdab.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Fix hard dep on widgets for autotests

Change-Id: I4a847eb9480eb6343fe60c71ec3e37bd6887af9f
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Doc: Remove references to nonexistent functions

 - setAppDpiX()
 - setAppDpiY()
 - screen()

they only exist in Qt 4.8.

Change-Id: Ifca7cf9712a9b822b0776f413451d6bca7c69a37
Reviewed-by: Sze Howe Koh <szehowe.koh@gmail.com>
Reviewed-by: Martin Gräßlin <mgraesslin@kde.org>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
test: Remove dead code around QX11Info::setAppDpi{X,Y}

These functions don't exist for QX11Info.

Change-Id: Icb9a4b28c1f97ac8d59c93a29633547c84f6589c
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
Reviewed-by: David Faure <david.faure@kdab.com>