Use Unicorn, bump therubyracer, add Procfile
Upgrade Rails from 3.2.13 to 3.2.17. Multiple CVEs addressed.

** Rails updates
February 19, 2014 (Rails 3.2.17)
CVE-2014-0082, CVE-2014-0081

December 3, 2013 (Rails 3.2.16)
CVE-2013-6414, CVE-2013-6417, CVE-2013-6415, CVE-2013-4491

October 23, 2013 (Rails 3.2.15)
CVE-2013-4389

** i18n updates
December 4, 2013 (i18n 0.6.6)
CVE-2013-4492
Update devise 2.2.x for security updates (didn't attempt 3.0 upgrade)

** Devise updates
August 6, 2013 (Devise 2.2.5)
CSRF Token Fixation Attacks
Use the Heroku toolbelt instead.
Removes files inadvertently added from a previous commit
The gem `ruby-debug19` was specified twice in the Gemfile
Updates nokogiri to the latest 1.5.x patch-level for security.

** Nokogiri updates
CVE-2013-6461
Merge pull request #3 from g5search/security-updates

Security updates