QPrintPreviewDialog: Prevent changing of page in resize handling.

Task-number: QTBUG-14517

Change-Id: I59e444eed8d44be9fb7213fdbab4be473d595be8
Reviewed-by: Andreas Aardal Hanssen <andreas@hanssen.name>
QFusionStyle: fix highlight colors

Respect the current color group of the palette,
and fix the inactive highlight color.

Task-number: QTBUG-30034
Change-Id: Iddfc15a2dd98d4588c6c587b7aaf64d88538fa28
Reviewed-by: Jens Bache-Wiig <jens.bache-wiig@digia.com>
Stabilize tst_qgraphicssceneindex.

Change-Id: I8cda10a5a4c9bf949b560e7be4da9bef92667688
Reviewed-by: Samuel Rødal <samuel.rodal@digia.com>