Fix require line in helper.
Fix require line in helper.

Was getting Undefined constant errors in dev randomly.

robinwhittleton/static,alphagov/static,kalleth/static,tadast/static,kalleth/static,robinwhittleton/static,robinwhittleton/static,tadast/static,kalleth/static,tadast/static,kalleth/static,alphagov/static,alphagov/static,robinwhittleton/static,tadast/static