Survivalcore (See Description)

The sound physics system of survivalcore has recieved many changes, resulting in a massive FPS boost, and a more realistic feel overall. 
You can now hear sounds reverberating around you in echoey areas like large caves in a much better and stable manner than before! Even your own footsteps will be heard bouncing off walls nearby! Mobs can also be heard from much greater distances in echoey areas due to their sounds bouncing off walls to make thier way towards the player. Cool stuff!
Speaking of caves, the spawnrates of the new gemstones has been massively boosted. effective for new chunks only.

Deployed a potential fix for carts not being attachable to reindeers, but this fix did not work in testing, so do not expect it to work. I cam still currently investigating this fix.