------------------
- Feature: if not already registered, Plone users get
registered on jabber server on login
[alecghica]
- Bugfix: no need to refresh browser for users registered
on login, they are binded on the fly
[alecghica]
- Bugfix: "Deregister ALL Users" function, credentials were
left un-deleted under IXMPPPasswordStorage resulting in
various errors when registering/deregistering users
[alecghica]
- Bugfix: fixed subscribing when a new plone user is added
[alecghica]
- Bugfix: users were only being auto-subscribed to
other users added in that current session
[alecghica]
- Bugfix: new users are now auto-subscribed only
to existing XMPP users
[alecghica]