core, quick_frontend, primitivus, wix: Contacts List refactoring phase 1:

- QuickContactManagement is not used anymore and will be removed, ContactList + Core are used instead
	- disconnected contacts are now displayed in Primitivus (M-d to show/hide them)
	- avatars are temporary unavailable in wix
	- new bridge method: getContactsFromGroup

frontends/src/wix/chat.py

@@ -258,7 +258,12 @@ class Chat(wx.Frame, QuickChat):
         filename = wx.FileSelector(_("Choose a file to send"), flags = wx.FD_FILE_MUST_EXIST)
         if filename:
             debug(_("filename: %s"),filename)
-            full_jid = self.host.CM.get_full(self.target)
+            #FIXME: check last_resource: what if self.target.resource exists ?
+            last_resource = self.host.bridge.getLastResource(unicode(self.target.short), self.host.profile)
+            if last_resource:
+                full_jid = JID("%s/%s" % (self.target.short, last_resource))
+            else:
+                full_jid = self.target
             id = self.host.bridge.sendFile(full_jid, filename, {}, self.host.profile)
             self.host.waitProgress(id, _("File Transfer"), _("Copying %s") % os.path.basename(filename))