general:
- documentation !!!
- better error handling

xmpp-base:
- jabber:server stream support (including diallback)

xmpp-im:
- privacy lists

other:
- jabber:iq:version
- jabberd 2.0 component stream support
- jabber:iq:search
- add Zope3 interfaces support (with no strict requirement for zope.interface)
