Add rudimentary MUC support#7

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regularfry wants to merge 4 commits intozk:masterfrom

Commits on Aug 27, 2013

Add rudimentary MUC support
regularfry
committed

Commits on Sep 9, 2013

Return the connection from start-muc.
bmalex
committed

Commits on Feb 28, 2015

Add some more descriptive debug text
bmalex
committed

Commits on Mar 2, 2015

Add notify-one and notify-muc for one-off sends
bmalex
committed