Move MB.constants.CLEANUPS->viaf before ->vimeo.

That list needs a lot more sorting, but no need to make it worse, eh? :)
Add space in MB.constants.CLEANUPS->viaf->match's RegExp call.

Ever so minor coding style thing that bugs me...
Unbreak the list/array! (Missing ",".)
Add JS cleanup for VIAF URLs.
Add tests for the VIAF JS URL clean-up.
Remove trailing commas.
Remove Python-isms...