Move tempSaveSettings into general world directory.
Set universal cleanse to affect entity handler and spawnlist folder.
Purge old Configuration setup, only GlobaProperties to go.
Gsonify biomeblacklist. It now has its own file.
Gsonify global settings. Logging settings get their own file.
Tweak BiomeGroup save format. Category and GroupId inferred from category entry is in. Remove explicit fields.
Fix NPE when reading BiomeGroup Gson