Use non-deprecated Object.defineProperty for fancypants exports getters.
Update notes and afterword.
Don't blow up if they pass 'none' for license.
Filter out _project/* from renames when templating module only.
Pass --project to template a project only.

Whether or not a project is needed falls back to the absence of a Gruntfile.js.
Push arrays onto templatePrompts, then flatten it.
Dynamically add 'notes' and 'after' content.
Ensure 'notes' are always output.