Mailer

Completed the method for the mailer and installed the gem to send emails. I have the mailers stored in the bd as trigger_events. We can tighten up the messaging later if we need, but it should be good for now. I still need to write to cron job that is going to send the daily summary email if that is the user preference, create the form for a user to manage preferences, and create the form to invite new members. 
Should this be 
    invite_email.user_mailer(id, trigger_something)
?