Extract util/dev.js / prod/dev dependencies Archetype publishing

[ryan-roemer]

From @chaseadamsio

If you decide to go either route, it might make sense to abstract util/dev.js into its own package so that anyone who wanted to create builder archetypes could just use it without having to know how to use the script or update it whenever you decide to update it...it might even make sense to make it a part of builder as a task, something like: builder publish archetype inside of a repository that would publish your archetype and the -dev version for you.

[curiouslychase]

@ryan-roemer What are your thoughts on this? This may be a good place for me to jump in...