Help with Custom Preprocessor Gem

Hi,

As a learning exercise I'm trying to put together a custom preprocessor
gem that uses hogan.js to evaluate mustache templates. I'd appreciate
help on how to test the functionality of the preprocessor and how to
integrate the functionality into tilt/rails asset pipeline. I've
published the code to: https://github.com/dmehr/hogan_mustache.git

Thanks.

-Dan