I haven't verified this recently, but I don't think you need to explicitly load npm tasks since we're using the `load-grunt-tasks` module in the Gruntfile.js (which should load anything `grunt-` in the [package.json](https://github.com/mozilla/fxa-content-server/blob/master/Gruntfile.js#L22) `dependencies` automatically for us).

Alternatively, we could remove the `load-grunt-tasks` module and explicitly load each task's dependencies manually in each grunttasks/*.js which may help w/ grunt execution times since it only loads the grunt-* modules it needs instead of automatically require()-ing all of them.

Up to you.