plugin XEP-0054, quick frontend(app): various improvments:

- memory.cache is now used
    - getAvatar and setAvatar has been renamed to avatarGet and avatarSet to follow new convention
    - getAvatar now return (optionally) full path, and may request vCard or only return avatar in cache
    - getAvatarFile has been removed as it is not needed anymore (avatarGet can return full path)
    - getCard has been removed from bridge as it was only used to request avatar
    - new internal method getBareOfFull return jid to use depending of the jid being part of a MUC or not
    - cache is now set per profile in client, instead of a general one for all profiles
    - thanks to the use of memory.cache, correct extension is now used in saved file, according to MIME type
    - fixed and better cache handling
    - a warning message is shown if given avatar hash differs from computed one
    - empty hash value is now in a constant, and ignored if received
    - QuickApp has been updated to follow new behaviour
    - Primitivus has been fixed (it was not declaring not using avatars correclty)
    - jp has been updated to follow new methods name

frontends/src/quick_frontend/quick_chat.py

@@ -126,7 +126,9 @@ class Message(object):
 
     @property
     def avatar(self):
-        return self.host.getAvatar(self.from_jid, self.profile)
+        """avatar full path or None if no avatar is found"""
+        ret = self.host.getAvatar(self.from_jid, profile=self.profile)
+        return ret
 
     def getNick(self, entity):
         """Return nick of an entity when possible"""
@@ -583,16 +585,25 @@ class QuickChat(quick_widgets.QuickWidget):
 
     def onAvatar(self, entity, filename, profile):
         if self.type == C.CHAT_GROUP:
-            if entity.bare == self.target and entity.resource in self.occupants:
-                self.occupants[entity.resource].update({'avatar': filename})
+            if entity.bare == self.target:
+                try:
+                    self.occupants[entity.resource].update({'avatar': filename})
+                except KeyError:
+                    # can happen for a message in history where the
+                    # entity is not here anymore
+                    pass
+
                 for m in self.messages.values():
                     if m.nick == entity.resource:
                         for w in m.widgets:
                             w.update({'avatar': filename})
         else:
-            if entity.bare == self.target.bare:
-                log.info("entity avatar updated")
-                # TODO: call a specific method
+            if entity.bare == self.target.bare or entity.bare == self.host.profiles[profile].whoami.bare:
+                log.info(u"avatar updated for {}".format(entity))
+                for m in self.messages.values():
+                    if m.from_jid.bare == entity.bare:
+                        for w in m.widgets:
+                            w.update({'avatar': filename})
 
 
 quick_widgets.register(QuickChat)