core (xmpp): server certificate validation: XMPP server certificate is now checked, and connection is refused (by default) if it's not valid. Certificate check can be disabled in the new parameter "Configuration/check_certificate". If certificate checking is disabled, a warning note is sent on every new connection. Twisted and Wokkel are temporarly monkey patched in sat.core.tls_patches module, until modifications are merged upstream.

# 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