Fix draw order of contents vs. toolbar in ApplicationWindow

Task-number: QTBUG-31207

Change-Id: I8843988d0e2dfe505aae374325c23caf0736d05b
Reviewed-by: J-P Nurmi <jpnurmi@digia.com>
Skip build when the quick module is not available

Change-Id: I549c5fcd22a15c8a87cb79adb512ab772afe7831
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
GroupBox: fix the activeFocusOnTab behavior

* change GroupBox to FocusScope
* update the autotest

Task-number: QTBUG-31306
Change-Id: I72d24b8eb71aa72798e01925691dbb3570518aed
Reviewed-by: Jens Bache-Wiig <jens.bache-wiig@digia.com>
Fix Base SliderStyle handle to work with minimumValue != 0

Task-number: QTBUG-31622

Change-Id: I7a61f3ed806d66735bf86d1438b0fd61f904b9a6
Reviewed-by: Jens Bache-Wiig <jens.bache-wiig@digia.com>
Merge branch 'stable' into st
Merge branch 'st' of git://github.com/suitabletech/qtquickcontrols into st