Handle stanza to invalid JIDs properly
For example, trying to join the room bla@irc.poez.io makes biboumi send a stanza to the xmpp server with a from="@irc.poez.io". Don’t do that, send an error message to the user who did that, instead.
(from redmine: created on 2014-03-22, closed on 2014-03-24)
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