Add Amazon S3 extension and rack-cache
Run bundle install
Enable rack cache
Add validations for image size and format
Add validation errors while saving and create partial
Rename errors partial in shared folder
Convert all images to JPEG, check if an uploaded file is an image
Add Ruby version to Gemfile
Add require dragonfly/s3_data_store
Add Ruby 2.0.0 to Gemfile
Change initializer file to integrate with Amazon S3
Add bucket name and environment variables
Merge pull request #29 from leeju/master

Use AWS S3 to Store Static Assets and File Uploads