fixed JSF path query bug and added helpers for mirror and rotate props
fixed JSF path query bug and added helpers for mirror and rotate props

gpac/gpac,rbouqueau/gpac,rbouqueau/gpac,rbouqueau/gpac,rbouqueau/gpac,gpac/gpac,gpac/gpac,rbouqueau/gpac,gpac/gpac,rbouqueau/gpac,rbouqueau/gpac,gpac/gpac,gpac/gpac,gpac/gpac,gpac/gpac,rbouqueau/gpac