GH web hook integration

[TomSeldon]

Currently this works fine as a Node module, but not all projects will use, or have access to Node.

A future enhancement would be to write a web hook that integrates with GitHubs API. i.e. similar (but to a much, much smaller scale) to Travis/Appveyor. i.e. this would be a separate, mini-CI service.

It doesn't look that hard to do, but is very much a "nice to have" thing for the future.