Patch #4 - Achievement adjustment

This patch adjusts the requirements for a few achievements to make them less of a chore. Hopefully, more players can now unlock these without getting too bored.

Astro Impact:

• Red Rampage, Blue Breakthrough and Green Gain: Now you only need to reach wave 4 with each, down from 5.
  

Brick Smash:

• Night Sky Knight: Requirement changed to reach level 6, previously 8.