Update 0.9.17

A very minor update, with the only significant improvement being to the flight system.

• Improved flight system: after jumping, which stops gliding on the wings, you can now re-enable gliding and do it again and again.
  
• Fixed a problem with hair material. (In the shadows, all hair colors looked black)
  
• Reduced the number of random connections of a second player from the keyboard when playing with a gamepad. (Now ignores alt+Tab, F12, and others.)
  
• Improved visual effects for shield hits.
  
• Fixed animation for aiming with a bow. (didn't notice what broke it or when)