QtIFW

Fix unregistering resources. Fix --operation argument parsing.

In case of dump we register some resources, though since we
return immediately after the function call, never unregister.
We need to split the arguments on our own, the parser does not.

Change-Id: Id97e0a4d8a3c15fd0027a09514a9c0a6930e7fdb
Reviewed-by: Niels Weber <niels.weber@digia.com>