Graceful Logoff/Disconnection/Quitting, Controller Support, In-Game Chat, and Major Bug Fixes

Had a very long two week sprint where I added and reworked a TON of stuff in the game such as:

• Graceful logoff, disconnection, and quitting (i.e. no more insta-quit on pressing escape).
• Added controller support.
• Added in-game chat.
• Fixed an insane amount of major bugs:
  • Completely rewrote the entire master game state system.
  • Fixed a ton of memory leaks and odd crashes.
  • Fixed oddities on level restart (e.g. balls in wrong location).
  • Fixed the double jump bug.
  • Etc.

Looking forward to improving the level design now including adding in some fun AI creatures!