Merge pull request #13 from ioerror/master

Add AppArmor profile
Show offline message when contacts become unavailable
Also terminal escape XMPP messages.

Although info, error etc messages were terminal escaped, XMPP messages
weren't :(
Teach config.go about the Riseup! Hidden Service

The current Riseup! hidden service is:

  ztmc4p37hvues222.onion

This .onion comes from the Riseup! chat documentation page:

  https://www.riseup.net/en/chat