[add-testing] Stubs for testing w/ minitest
[upgrade-rails-3211] Upgrade rails to 3.2.11 to support security fixs

[upgrade-rails-3211] Gemfile lock update
Merge pull request #60 from sniperd/upgrade-rails-3211

Upgrade rails 3211
Merge pull request #61 from sensu/development

Merge development into master, Upgrades Rails to 3.2.11 for important security fixs