Instruct server to remove LRD. Fixes #29.
Look for tombstone onSmelting. Fixes #31.
Removed unnecessary else if. Fixes #30.
Stopped chore crash when tool breaks. Fixes #34

Broken worlds are restored.
Stopped crash when mining modded block. Fixes #38

This is merely a workaround where the block will disappear and not be
added to the inventory. Not much else I can do at the moment.
Entities weren't registered on server. Fixes #35.
1.6.2 port for fix #35