Include jid resource in Message.from/to

This fixes get_sender_username in groupchats
Merge remote-tracking branch 'origin/fix-from-to' into arrrrr
Fix messed up display of status and repos commands

This occurred in pidgin pre 3. Now both pidgin 2 and 3
render the command outputs nicely. Other clients may be
affected to, especially adium, since it shares the same
renderer (as far as I know).