Use Amazon SES to send email with ActionMailer

 - Add dependency on aws-ses gem
Compose chirps/user using the newly extract partial
Pluralize # followeres in chirps/user
Add the ability to follower a user via a controller and form
Merge pull request #13 from marcbowes/master

Allow users to follow other users via the chirps/user page
Implement and wire up a chirp watcher which will find when the page needs reloading and then will ask the user
Merge pull request #14 from marcbowes/master

Enable polling for new chirps on the user page
Integrate with Amazon SES for email

Merge branch 'feature-ses'
Add links to the slides in the README