QStandardPaths: Use forward slash consistently.

Task-number: QTBUG-29249

Change-Id: I027f9ae18544dc47e1378214244487c8a5ae704c
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Stabilize tst_qprogressbar.

- Wait for shown to ensure events are processed.
- Move away from screen corners/potential task bar areas.

Change-Id: I2c3aa9b675c6b33ca0da67ee99cc6f76c502098a
Reviewed-by: Samuel Rødal <samuel.rodal@digia.com>
Disable maximize button for fixed-size windows.

Task-number: QTBUG-28407

Change-Id: I5bab7fcf4ad3ecc7008ef02b9d3575d75893895d
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>
Make -force-debug-info option work

Should be applied to Qt modules. Not interesting for third party
users.

Change-Id: I8fce821af397e3ace011a426c762319f6d30004f
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>