Removed gruntfiles from list of files to lint.
Removed gruntfiles from list of files to lint.

esfiddle/esfiddle,collinmesser/esfiddle,joshghent/es6-fiddle-web,asiyani/esfiddle,vcapretz/esfiddle,vcapretz/esfiddle,collinmesser/esfiddle,esfiddle/esfiddle,asiyani/esfiddle,joshghent/es6-fiddle-web,esfiddle/esfiddle