Start working on the email confirmation
Generate acceptance_url and reject_url for the mail confirmation
Disconnect from the smtp server once email has been sent
The confirmation object is provided to the function directly and the recipient is the detail_value
Add decorator method to require that a user logs in
The handle_confirmation method requires that the user is logged-in

This method is the one access directly via the links sent by email/irc...
The user might thus not be logged-in when accessing the page, this makes
sure if he/she is not, he/she will
More fixes in the email backend

- the send_mail now takes a 'subject' argument used as subject for the email
- handle generates the subject from the fedmsg msg as it should
- handle_confirmation has a fixed subject for its email
- handle_confirmation accepts only one argument, the confirmation object
Remove debug code that was even making the backend crash...