+grunt +jshint

@k88hudson turned me on to <https://www.npmjs.org/package/jit-grunt> (run in [mozilla/webmaker.org/Gruntfile.js#L3-L7](https://github.com/mozilla/webmaker.org/blob/master/Gruntfile.js#L3-L7)) to avoid ending up with a skillion of these and I'm loving it in [webmaker-landing-pages](https://github.com/gesa/webmaker-snippet-landing-page/blob/1027453/mozilla-landing-page/gruntfile.js#L7-L9).