I've been looking for a way to integrate something like swag with the way the require-handlebars-plugin loads helpers.  Probably no good way of doing it other than making `Handlebars` point to swag and then make the actual handlebars source a dependency for swag.  Still would have to test it though to see if it require-handlebars-plugin got upset a helper was already loaded.

On a side note, is require-handlebars-plugin even still being supported?  There was a merged pull request last week, but other than that there's been no activity for months and it's still stuck on a RC of Handlebars.