VcsManager: Hide unconfigured VCS message after VCS is configured

Still requires changing editor to refresh...

Change-Id: Ia8524bfcbdbc0f6b6cff02ff373d6edab129b38a
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
Git: Handle merge conflicts on stash pop

Change-Id: I41a9173be2feae4ab529fd9b3f2e1e7cc5ae92ff
Reviewed-by: Petar Perisin <petar.perisin@gmail.com>
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>