Headless V1.1

Fixed:

• Mainclass pointer - Wrong class set as mainclass
• Self kill bug - Killing self would cause you to lose a life
• revive bug - Sometimes reviving wouldnt work if player heads were not in a specific slot
  Added:
• /gethead command - Gives you a players head
  Updated:
• /credits - Now has github and github issues links

(edit: version has a dupe bug do not use)