Make a PR to integrate Twig mode in CodeMirror

[dsferruzza]

Hi!

I'm using your Twig mode codemirror/mode/twig.js and it seems to work fine, but I would really appreciate to be able to fetch it with bower, as I do with my other dependencies.

Why don't you make a pull request to integrate it in CodeMirror?
Or, at least, it would be nice to have it in its own repository so it could be easily fetched with bower.

Thanks!