Remove unused code + broken whitespace checks

I think the lib handles whitespace now? Although not sure why it doesn't
insert a ,\n now, I'm not too worried though. It's not ideal but it will
work fine.

Change log, version bump and readme format

Bump to v2.3.0

Update pom.xml

Repom and format with xmlformat

Bump to v2.0.1 and fix pom

Bump pom version

Bump for 1.8.4

Bump for v1.8.3

Bump for v1.8.2

Also ordered contributers by alphabetical order.