Update to converse 0.6.3
Update history
Preparing release 0.3.1
Back to development: 0.3.2
Update sphinx
Updated Locales. Add HU, NL and RU
Bump converse.js to latest code in master (0.6.6 and a bit)

Specifically: 61c7174238778c12e9457f04dcd6c86ff0096092
Add new langs to js registry and add upgrade step
Bugfix. Roster didn't appear in some cases.

Make sure the last roster item is still added (even if it's a
zombie), so that the roster will be shown (roster is only shown
when last_item property is true).
Merge branch 'master' of github.com:collective/collective.xmpp.chat

Conflicts:
	src/collective/xmpp/chat/browser/javascript/converse.js