[SDL] (4 commits) ...Convert CREDITS to UTF-8

[Petr Pisar]

Summary of changes:

  04108f9... Remove src/joystick/darwin/10.3.9-FIX/IOHIDLib.h (*)
  087c2d2... Apply SDL-1.2.14-xio_error-rh603984.patch (*)
  fbf0502... Escape % signs in spec comments (*)
  700ee7d... Convert CREDITS to UTF-8 (*)

(*) This commit already existed in another branch; no separate mail sent