Godoku v0.2.6

Update

This update is a quick one after the long stretch for 0.2.4. We wanted to get out the improvements suggested by our wonderful testers ASAP:

• The music fader didn't work properly when paused. Now, songs should fade up and down correctly even when the game is paused.
• The numpad now disables buttons when a number is completed, reducing chances of accidental keystrokes.
• Misc code cleanup