Qbs: Properly initialize "Run in Terminal" based on qbs properties

"Run in Terminal" is checked/unchecked according to the consoleApplication
property found in qbs.

Rename the forceGuiMode method to better describe what it is used for.

Change-Id: I485058c85563cf4d3ced0d1a5f8cb1bf89791750
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
tr()-Fixes in QNX-plugin.

Fix spelling, do not use QObject::tr().

Change-Id: If0c55e956ea749ad6ca37cb3ad98c880beaabb49
Reviewed-by: Daniel Teske <daniel.teske@digia.com>
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@digia.com>