Still need to grab it on the room-level from the room state if possible,
otherwise just rollback to the MXID.
I also need to consider profile pictures and bridging media, and check
if the nick was present XMPP-side first, as that can and will cause
issues, especially around semi-anonymous MUCs.
Still lots of things required(like using the users JIDs whenever
possible, otherwise dropping to occupant ID), images, replies, rich data
with HTML and whatever XMPP has, etc...
The fuck is a stanza? Presence? Why did Prosody not tell me I'm an idiot
when I clearly made a MALFORMED XML document? This and much more, in the
next commit!
