core, bridge: extra parameter is saved in history:

- added extra data in getHistory return value
    - extra data is saved in database
    /!\ WARNING: DATABASE SCHEMA HAS CHANGED /!\
to update sqlite database: ALTER TABLE history ADD COLUMN extra BLOB;

frontends/src/quick_frontend/quick_chat.py

@@ -98,7 +98,7 @@ class QuickChat(object):
         debug (_("now we print history"))
         def onHistory(history):
             for line in history:
-                timestamp, from_jid, to_jid, message, _type = line
+                timestamp, from_jid, to_jid, message, _type, extra = line
                 if ((self.type == 'group' and _type != 'groupchat') or
                    (self.type == 'one2one' and _type == 'groupchat')):
                     continue