QtIFW

Add some more ambiguous chars and option to allow space.

Task-number: QTIFW-148
Task-number: QTIFW-161

Change-Id: I20a0a1be872807305398d81b8672f3df77220212
Reviewed-by: Tim Jenssen <tim.jenssen@digia.com>
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>
Reviewed-by: Niels Weber <niels.weber@digia.com>