plugin XEP-0045, quick frontend (app,chat): various chat improvments: - (XEP-0045): join defered is now fired when room is full joined and history is available - (XEP-0045): mucJOIN signature has changed, it now returns the same arguments as mucRoomJoined and a boolean which is True if the room was alread joined - quick frontend (app, chat): adapted code to new changes

# FIXME: remove this when RSM and MAM are in wokkel
# XXX: the Monkey Patch is here and not in src/__init__ to avoir issues with pyjamas compilation
import wokkel
from sat.tmp.wokkel import pubsub as tmp_pubsub, rsm as tmp_rsm, mam as tmp_mam
wokkel.pubsub = tmp_pubsub
wokkel.rsm = tmp_rsm
wokkel.mam = tmp_mam