Test Travis CI setup
Procfile and Puma config to run on Dokku.
Fixed Carrierwave setup for AWS S3
Secret key stubs when ENV vars are missing.
12factor gem.
Fixes bug when creating safe post params on a new post.
Set ruby version to 2.1.4
Removing Capistrano. We are using Dokku now.
Merge branch 'travis' into dokku
Continuous deployment steps for Travis and encrypted keys to go with it.