QmlProfiler: Remove gradient borders

It just looks so much better with "clean" borders.

Change-Id: I9aae0e6f24556042e23580e224abb696913fc989
Reviewed-by: hjk <hjk121@nokiamail.com>
Debugger: Some cleanup in gdbbridge

Change-Id: Iecea0ee1d66cff3a4dbe2c9605babb2e49d0c93a
Reviewed-by: hjk <hjk121@nokiamail.com>