Release 116 - An unexciting update

An unexciting update

Lots of internal code refactoring, which meaning nothing really tangible changes. Preparing a lot of code to target future updates and requests.

Venefio (pmc) pointed out black tropical fish color variant was missing. This has been added in now.

https://www.gamergeeks.net/apps/minecraft/mob-generator/summon-tropical_fish