[Haskell-cafe] Taking over protocol-buffers package

Hi Chris and Cafe! I've sent Chris an email couple days ago, this is another one to have haskell-cafe CCed in order to request maintainership of protocol-buffers package. Stefan Wehr actually tried to contact Chris long time ago, and thus you can see current "riak" package depends upon protocol-buffers-fork package, created to add support for GHC 7.8. I'd like to incorporate work from protocol-buffers-fork, add support for GHC 7.10, and also move project to GitHub and add some README with at least basic tutorial. Thanks! Awaiting few weeks now :)