Piggyback on mysql cookbook

Opscode has recently made efforts to decouple the mysql cookbook from using specifically mysql, so that it can be used as a dependency for drop-in replacements.

I was working on a cookbook to scratch my own itch, and was wondering whether you'd consider accepting a PR to move your own cookbook in that direction. I'm totally willing to do the legwork :)

Here's my repo:
https://github.com/myplanetdigital/chef-percona