plugins schema, merge_requests, tickets*: factorisation Dode common in plugins using schema have been factorised in pubsub schema plugin, and filters users in tickets handling have been renamed in a more generic way and put there too. "reporter*" fields in tickets have been renamed to "author*" as it is a more generic term which can be used elsewhere. The use of new utils.partial function make easy the creation of simple plugins using schema.

# 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