Update to version 0.2.6

Changelist (version 0.2.6):

• Adjusting waves on enemies.
  
• Adding info about game type to save slots.
  
• Fixing bug with moonlight intensity. 
  
• Fixing saving map on lava level.
  
• Increased scroll speed in main menu windows. 
  
• Fixing electric airstrike recipe.   
  
• Fixing bug with gnome award in endless mode