ShineaL's Prehistoric Expansion

Changelog:

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-Made Mammoths Despawn

-Made Spinosaurus Drop XP

-Drastically Reduced Mammoth Spawn Rates

-Drastically Reduced Anurognathus Spawn Rates

-Fixed Ammonite Shell

-Added A Working Procedure For Hostile MOBs To Spawn In The Day

 -Added Five New Skeleton Blocks (Creative only for now,  still working on fixing bugs and such around them)

-Added Carnotaurus 

-Completely Fixed All Ginkgo And Juniper Forest Generation

Report any bugs, issues or feature requests in the issue tracker!