Sphinx RT Index Backend.

[Ben Timby]

I am working on a Haystack backend for Sphinx RT Indexes. I wanted to see if there was any interest on the list in helping me develop/document/test this project.

https://github.com/btimby/sphinx-haystack

I am writing this to satisfy my need for integration between Sphinx and Haystack, but I am open to developing additional features for other users if there is interest.