* Squelching a lot of debugging output, unless DEBUG is #define'd

* Added "--joystick-dev" option, for specifying which joystick device
   Tux Paint should listen to
   * "--joystick-dev list" is now used to list the available devices
 * Cleaned up some 'usage' output

src/tuxpaint-completion.bash

@@ -64,6 +64,7 @@ _tuxpaint()
 			--onscreen-keyboard \
 			--onscreen-keyboard-layout \
 			--onscreen-keyboard-disable-change \
+			--joystick-dev \
 			--joystick-slowness \
 			--joystick-threshold \
 			--joystick-maxsteps \