- core: 2 new convenient methods: getJidNStream and getClient
- new param in plugin info: "handler" to know if there is a handler to plug on profiles clients
- plugins with handler now use an other class which is returned to profile client with the new method "getHandler" and pluged when connecting
- quick_frontend: better use of contact management, it now manages nicks, avatars, and connected status
- quick_frontend: disconnect and remove are now 2 separate methods for contact list
- wix: new contact list using HTML items, and showing avatars. Groups are not showed for now
- wix: contact status now use tuples, to keep order, human readable status and color of contact
- wix: contact list is updated when avatar or nick is found
- wix: fixed 'question' dialog, which is renamed in 'yes/no'
- wix: action result are now ignored for unkwnown id
- sortilege refactored to work again