Ancient Artifacts 2

New features

• :moyai: Added a new advancement that clearly states that the artifact golem is invincible
• :blue_book: Added a new advancement that explains the command to get a creative book

Changes:

• :rock: The ancient stone now is unbreakable in survival when it contains an item
• :speech_balloon: The artifact golem now also tells you that he's invincible through a chat message
• :no_entry_sign: Removed the chat messages for suggestions / donations since I believe people should do this from themselves. I'm sorry for the suffer caused by these messages :P

Bugs fixed:

• :ghost: Fixed Artifact essence not dropping from phantoms / ghasts correctly
• :eyes: Fixed the Artifact golem sometimes turning invisible
• :pencil2: Fixed some spelling mistakes
• :hammer: Fixed missing Ancient Hammer in the dungeon