#bookbrainz

Mr_Monkey: Did another "minimal-diff" typescript conversion, this time for bookbrainz-data-js

https://github.com/bookbrainz/bookbrainz-data-j... - test is failing at the moment, but hoping to get that debugged now

The bluebird removal could do with some careful reviewing, everything else should be fairly straightforward and very similar to what was already done on -site