• Fix moving xcap contact from not in contactlist group to new group and update its status.
• Fix removing empty group.
• Fix metacontact searching for contacts when create address is different from the one returned by getAddress, was affecting setting the display name through add contact dialog. In add contact dialog if we have only one account, now it is selected by default. Improve some error messages patch provided by Andreas Kuckartz in mail with subject "[jitsi-dev] [PATCH] improve error messages".