FindInOpenFiles: use documentCount instead of openedEditors

Change-Id: I329417ce61b71f3bf080c5a76c41c69acda2cb94
Reviewed-by: Eike Ziller <eike.ziller@digia.com>
Debugger: give the qmlToolBar a parent.

Showed up in valgrind as a leak, when QML debugging was not used.

Change-Id: I8e378795727f0e2f297086ae73dab99b6a28de32
Reviewed-by: hjk <hjk121@nokiamail.com>