`dadi web new` adds `@dadi/web-dustjs` even if it's not chosen in the picker

[danwdart]

I create a new project using dadi web new and pick web-es6-templates. However, @dadi/cli proceeds to also install @dadi/web-dustjs as well, even though I didn't pick it.

Presumably this is because the demo web page uses dustjs, so I think it would be better if @dadi/cli made a decision to create demo page(s) based on which templating engine(s) I picked (since it seems to allow multiple).

Anyway, I thought dustjs was dead...