Test for very long words in chat messages (must be wrapped) and very long names
in chatroom participants list.

Also show chat-info and chat-event messages (could probably be merged into one
class/style).

Conflicts:
	docs/html/searchindex.js
	index.html

Trying to flesh out the bug where in certain instances the 'pending contacts'
header doesn't get removed after the last pending contact is removed.

Makes it more secure, since the enclosed converse object as access to
privileged data, we don't want people to inject code that could expose that.

This requires that valid jid, rid, sid and bosh_service_url values be given (or
a valid connection object that was already attached).

Updated the docs to reflect these changes.

Otherwise some presence notifications might be lost