teeparham/paperclip-meta — pull request #27 by ScotterC (2014-02-25 23:55:40+00:00)
Title: Preserve meta data

For styles that were already processed or when a style is exclusively reprocessed, the meta data should remain.

This is @kshsieh's [PR](https://github.com/teeparham/paperclip-meta/pull/20), which I was using, cleaned up a bit in hopes that it'll be merged.