Update Rails to 4.0.3 (security)
Merge pull request #16 from benichu/rails-security

Update Rails to 4.0.3 (security)
Updates Ruby to 2.1.0
Heroku caching, mailing and unicorn
Adds letter_opener gem
Creates messages scaffold and contact form
Sends html email to gmail address when new message is sent
Adds generic title meta tag