Blackberry: Fix QFileSystemEngine::tempPath()

Fall back to /var/tmp instead of /tmp if neither TMPDIR nor TEMP are set.

/tmp is not a true filesystem on BB10 but rather a symbolic link to /dev/shmem

For more info see
http://www.qnx.com/developers/docs/6.3.0SP3/neutrino/user_guide/fsystems.html#RAM

Change-Id: Ie690ed74ffd81b52ef4623458c3ff88629aee00a
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Remove qSort usages from tests

QtAlgorithms is getting deprecated,
see http://www.mail-archive.com/development@qt-project.org/msg01603.html

Change-Id: I4c48db80533802e37771d3967fa10bfb7000cb9a
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Remove qSort usages from gui tests

QtAlgorithms is getting deprecated,
see http://www.mail-archive.com/development@qt-project.org/msg01603.html

Change-Id: Idf0fc471f8ab7b30a097d8faf93c93d5ebbb03ef
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Ensure we switch back to the real paint engine when not emulating

When the emulation paint engine was no longer needed then it would still
end up using it because the flags would prevent it from being switched
back. This ensures that it has the right engine when something triggers
it to be switched.

Change-Id: I7571923d16cbebd9fdd34560631b561c07a724f7
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
Only do a repolish() of the widget if it was already polished

By ensuring that the widget is already polished before doing a repolish it
means that if you reset the stylesheet then it unsets any changes that
the stylesheet had applied to the widget.

Task-number: QTBUG-18958

Change-Id: Ie0aeda0dac9f2211b7feca138c115cf2b48aac80
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
QFileDialog: restore state from QSettings after creating widgets

After 37ca2224eca671200a2710f57f970d2993e62aa5 it's necessary to
read the saved QSettings again after creating widgets, in order to
deal with the settings which only affect widgets (such as saved
bookmarks).  It's also necessary to read them if widgets are not used
though, because some of the settings affect native dialog options.

Task-number: QTBUG-36888
Change-Id: I8cf53db864b173c50a876a1d5ce29c1e073fcaa6
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>