Create LICENSE.md

This license is copied from [this page](http://www.wannabegeek.com/?page_id=253) on the original authors site, as per [this comment](http://www.wannabegeek.com/?p=444&cpage=1#comment-1039) from the original author.
Merge pull request #1 from johnnye/master

Add License to the repo - thanks johnnye.