Update libmowgli-2 snapshot.
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Update libmowgli-2 snapshot for the 545783278278th time.
Update libmowgli-2 snapshot for mowgli_get_args() removal.
include: Regenerate hooktypes.h when its dependencies change.
Add a hook "user_delete_info" with the quit message.

The new hook is called just before user_delete.
Adding envelope sender address
nickserv/info_lastquit: New module to show the last quit message in INFO.

Note that the quit message is determined by different code than in the
ircd. Therefore, splits, kills, nick collisions and the like may look
slightly differently than in the ircd.
Changing -r to -f (standard for most MTAs)
Merge pull request #71 from ozzy2345/master

Adding envelope sender address
protocol/ngircd: add support for using SQUERY as PRIVMSG, like in anope
backend/corestorage: check if soper passwords are empty.  if so, don't demarshal it.
example config: document existance of "user" operclass
libathemecore: stringref cleanups
libathemecore: try to catch blank vhosts being handed to user_sethost().
Actually send the new vhost

This bug was introduced in 35cf1b, which assumed that u->vhost had
already been updated with a stringref-ed version of the new host.  As
user_sethost() in libathemecore does this for us, just pass through the
new host to it, after checking that it's different from the current
vhost.
Merge pull request #74 from dwfreed/master

Actually send the new vhost