[SDL] Analogue joystick "sticks" on OS X

[Ryan C. Gordon]

> Heh...  I had always rather assumed that was a function of the  
> joystick that if you started a program while it was pressed a certain  
> direction it would get stuck that way... ^_^;;  As far back as I can  
> remember I've had this issue with most any program on my Macs.

The bug is that it starts centered, but the first time you nudge the 
stick in-game, the game thinks you left the stick in a corner...rotating 
the stick around fixes it, and it stays fixed until you quit the app.

It's not "the stick doesn't work if you're holding it at startup."

--ryan.