Go over mob safari blacklist

[BBoldt]

Minecraft version:

Unabridged or Abridged version:

Issue Description: Blacklist any mobs that allow for insane exploits.

Examples:

• Clay soldier with an emerald
• portal sentries Steps to Reproduce:

Crash report or log (uploaded to gist.github.com or pastebin.com):

[EmoBubbleGum]

Robit from mekanism, if it's not already.

[BBoldt]

possibly robot from open computers too