Sublime snake

I've written a plugin that allows you to play snake in your sublime text files.

It opens up a new scratch file, copies across your current file and lets you start playing.

This plugin is still roughly in alpha although completely functional, so I expect to push out bug-fixes and new features if/when I get feedback from people through the package manager.

If you don't wish to pull it in, that's cool, let me know if you have any feedback.

Thanks,
Jon