Squish: Handle Squish installation path with spaces

Change-Id: Ia988ceaeab83d3b1b5258024f9c4ee5232eaf43c
Reviewed-by: Christian Stenger <christian.stenger@digia.com>
Persistent settings reader: Emit proper warning on value read failure.

Fix annoying assertion when reading session files:

SOFT ASSERT: "simpleValue.isValid()" in file
.\persistentsettings.cpp, line 126 .

Change-Id: Ia73a7a4a6f7a28c20876daf11a527b638ee02d89
Reviewed-by: hjk <hjk121@nokiamail.com>
Persistent settings reader: Implement QRect-type for values.

Format in X11-resource syntax.

Change-Id: Ifc8cd76202d0e1e02ae18809ac8d276e94a27262
Reviewed-by: hjk <hjk121@nokiamail.com>