Infinite Dimensions

Changes:

• Infinity Portals now have a system in place for automatically linking with each other. This way you won't exit out of a portal you haven't entered from unless you build a new portal or start breaking them. Testing and feedback is appreciated!
  • To allow for that, return portals to the Overworld are now infinity portals as well.

Bugfixes:

• There was a nasty bug with Java occasionally refusing to halt upon closing the game. I fixed that :D