Convert controllers to 1.9 syntax
Updated email template

This will have to be changed later. Too specific.
Additional 1.9 hash syntax
Add production settings to YML config
Nest verification_email route
Only notify household edit from email

Only show the flash notifce if the show action was called by someone
who came to the site with a token (via email)
Add Student#send_verification_email action
Lazily load primary_household for Student model