Add assignment.md to doc/
Add mention_email_notification.feature
Add letter_opener to gemfile and update development environment config
Update feature user story
Add mention steps file
Add mention steps file
Update mention feature
Update mention feature
Update mention feature and steps
Merge branch 'master' of https://github.com/elizabrock/nss-squawker into dev
Merge with dev
Update mention feature
Update mention feature to check correct user profile info
Add actionmailer gem to gemfile
Add actionmailer gem and update feature
Update mention feature and steps
Update mention feature
Fix feature scope
Adds actionmailer mailer and view.
Adds notification_mailer and corresponding view file.