Added `"use strict";` to gulpfile.js to satisfy fussy Node instances.
Added `"use strict";` to gulpfile.js to satisfy fussy Node instances.

alexweissman/UserFrosting,splitt3r/UserFrosting,splitt3r/UserFrosting,alexweissman/UserFrosting,alexweissman/UserFrosting,splitt3r/UserFrosting,alexweissman/UserFrosting