Add stub for the mail_receiver
Merge remote-tracking branch 'isis/feature/connect-couch' into feature/mail_receiver
Add ipaddr as a dependency
Make couchdb work
Fix comment since we won't check for encryption before encrypting the email blob
More fixes
Add pubkey retrieving
Improve the rest and start everything from start_mx
Catch the case where there's no pubkey for a user
Add check recipient access
More cleanup
Reorder files, normalize repo and add sample config
Simplify check recipient access, change the owner field in mail_receiver
Update requirements
Add logfile capabilities
Save unencrypted if no pubkey
Add incoming tag to unencrypted data too
Several fixes according to the review comments
Use the new naming for the soledad document json
Add setup script and init.d script

Also, some pep8 fixes