TryGhost/Ghost — pull request #2659 by appleYaks (2014-04-28 06:29:17+00:00)
Title: Clean transpiled ember files when they're changed or deleted

Eliminates the necessity to run `grunt clean` when you delete an ember es6 module.

closes #2658
- adds a grunt clean target to the `.tmp/ember-transpiled` dir
- adds the clean task to the list of ember watch tasks
- adds the clean task to the emberBuild task