The Jerry Plugin

• V1.8 -- Added Jerry Sword, crafted with a normal diamond sword with diamond blocks and slime balls
• V1.7 -- Added Jerry armor, crafted like normal armor using slime balls
• V1.6 -- Added crafting recipe for Jerry's Book, crafted by surrounding a book with slimeballs
• V1.5 -- Added the ability to put Jerry and Nether Jerry down using a Slimeball for Jerry and MagmaCreme for Nether Jerry
• V1.4 -- Fixed the code for the update system
• V1.3 -- Fixed a line of code
• V1.2 -- Added auto update checking and a config and commands
• V1.1 -- Added Jerry to spawn on logging in players with permissions
• V1.0 -- Initial Release

Teleporting well having a Jerry or Nether Jerry on your head prevents the teleportation...