Fixed bed spawns, improved chat

Added additional multiworld logic to the respawn logic
this also requried to add a new NBT tag to the player that holds the world the respawn location is set to.

Chat is now less memory intensive as the string(s) that need to be sent out are now
built once instead of for every player its being sent to. ...

Also removed some unused imports *looks at somners, initiates netbeans burn protocol*