Finished jobs have to send a status email to the mailing list (#45)

This is for issue #45.
I configured the jobs to send emails, similar as we do on mozmill-ci. Make different reg-ex for the mail subject, and I tested it on staging node, because from local node it can't send emails through mozilla smtp server (smtp.mozilla.org)
What? Why did you do this change? Please check your description to the mailing list and you will see it is `.org` and not `.com`.