Merge pull request #2 from Eylrid/master

Change how messages are broadcast
Make _getKeyLocation() suck a bit less
Fix UTF-8 encoding issues
Encode header in MIME for transmission to the email client
Merge pull request #3 from pgimeno/miscfixes

Miscfixes
More fixes for the official chan implementation, minor doc updates
Merge branch 'master' into Labels
Add addressbook and subscription lookup

Add the addressbook and the subscriptions list to the places to pull labels
for addresses from.