Describe the bug
I found two Stonelings underground while mining after getting the Gearing Up! progression stage of full metal armor. I happened to get lucky and got 1 heart of diamond.

To Reproduce
Steps to reproduce the behavior:

1. Search underground for Stonelings during an early progression stage.

Expected behavior
I expect Stonelings to not spawn that early as they have a chance to drop hearts of diamond which can be hammered into heart crystal shards.

Info (please complete the following information):

• Modpack Version:
  • 2.77.5
  • 3.0 BETA 5
  • Other:
• Server or Singleplayer:
  • Server
  • Singleplayer
• Version the world was created on:
  • 2.77.5
  • 3.0 BETA 5
  • Other:

Additional context
This is on a fresh 3.0 Beta 5 server using the most recent server pack update uploaded after 21:42 PST.

That heart crystal shard recipe should be removed. Other than that, this is intended.