Password change disabled, handle soledad ready properly
Right now in the password change window we connect to the soledad ready signal, but that signal may be emitted before the window is created and the connection is made. As a consequence, the password change is not enabled since it 'thinks' that soledad is not ready yet and no signal was received.
(from redmine: created on 2015-09-18, closed on 2015-09-21, relates #7470 (closed))