Hotfix 0.30.04

Fixed a couple of critical issues in today's hotfix.

• Fixed a bug that would reset experience needed to level to its base level 1 amount when resuming from a saved game. This could cause you to get a bunch of free level ups later in the game if you had any experience when you quit.
  
• Added a fix to prevent the large Coleop ships from getting stuck at the top of the screen at the end of a zone. Like many large ships, it will now retreat at the end of a zone if it's still around and at the top of the screen.