V1.03 Update - Joystick update - secondary fire button also jumps

After just receiving my new shiny retroradionics joystick, it came with switches on the two top buttons to turn them off and on.  Also, the left button is the primary fire, and the right button is a secondary fire.   This wasnt standard on the old Kempston Joystick as it only had one fire button, but with this joystick, it separates them out to different inputs.  I believe some joypads do this also, so this update simply takes either button as a jump button response, so you can use the joystick either left handed or right handed.