Patch #6 - Minor bugfixes

This patch fixes the following issues:

Astro Impact:

• RNG bug causing asteroids to occasionally spawn in a set pattern, which also affected supply satellite spawning.
  

Alien Assault:

• Highscore save bug that would some times overwrite an existing highscore with a lower score. This issue did not affect the global leaderboard, only the local save file.
  

I hope these small fixes improve gameplay.