Tuned nginx proxy settings
Updated Rails app to use Ruby 2.1
Updated Rails manifest for Makara
Fixed Rails dependency ordering
Ensure parent tmp directory exists
Added task for validating manifests
Removed dependency on HAProxy
Refactored proxy check

`apt-get update` should always run, even without a proxy
Fixed spelling mistakes
Sidekiq/Unicorn now restart on Rails changes
Merge branch 'feature/optimize-rails'