Early Access minor patches 1 & 2

Minor patches fixing bugs, adding rotate camera with keyboard option, and tweaking the default starting difficulty.

• The "Still Learning" difficulty now has ironman off by default.
  
• Minor tweaks to some "Forgiving" difficulty settings making them a tiny bit easier.
  
• Preset difficulty levels now have color codes.
  
• Added the ability to bind a keyboard key to rotate the camera in addition to the middle mouse button.
  
• Added missing texts for zoom in and out key binding.
  

Patch 2:

• Fixed a bug that would break the game if a building was highlighted by hovering it in management mode at the time that it was destroyed by enemies.
  
• Unocking the Dream Weavers now requires 3000 flux as noted instead of 3001.
  
• Fixed texts and typos.