Email Framework

• We use [T4 templates] (http://msdn.microsoft.com/en-us/library/ee844259.aspx)
• We use [Mailgun] (https://mailgun.com) as SMTP server. Note, that since repository is public it's not acceptable to store SMTP password in Web.config. Instead of that, a configuration variable in AppHarbor was created. Never commit it. It it's done - change password in Mailgun and in AppHarbor config immediately.
• Each email (only one for now) is complete and independent component which is separately registered in container and injected into clients.