Work around wrong return code from pclose

When we do not read the process output, pclose returns an error code even
if the process completes successfully. The simple fix is to always
read the output, even if we don't need it.

Change-Id: Idaec75acbdea6a911aede04506cbd403120b3d92
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
Reviewed-by: Daniel Teske <daniel.teske@digia.com>
Remove usage of deprecated function qSort

Change-Id: Ic99f7627430546a44a5290f913a35b2ba6d664b5
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
Remove QtAlgorithms usage from Qt Linguist and its tools.

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

Change-Id: I3d74510693a5144b536cf515077d870e380d47df
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Remove QtAlgorithms usage from Qt Designer.

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

Change-Id: I2c7057557295a9bbc83b3d7c625b04400d9e6c2a
Reviewed-by: Jarek Kobus <jaroslaw.kobus@digia.com>
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Remove QtAlgorithms usage from Qt Assistant.

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

Change-Id: I6f02d91289c3f455d8643b145fb2c6477863056c
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Reviewed-by: Karsten Heimrich <karsten.heimrich@digia.com>
Add QKeySequenceEdit to Qt Designer

Change-Id: I0efe3f58539fef59154d1c07e6c044bb45fe53cf
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>