Accept empty "style" hash
Merge pull request #6 from johnnyshields/empty-styles

Accept empty "style" hash
Merge pull request #5 from johnnyshields/master

Compatibility with breaking change in paperclip master
Hack for running Paperclip on Windows
Alter attachment_dimensions hack to make it clear it only applies to Paperclip v3.5.0
Move version to it's own file, bump it to version 0.2.1, regenerate gemspec