Xuggle 5.4 is available

[Itaru]

gid15 forgot to revert the IStreamCoder.open() method calls since the new open() method only works in Xuggle 5.4. Reverting to the old open() method will cause deprecation warnings in Xuggle 5.4, but the old open() method still works just fine in Xuggle 5.4 so it's safe to ignore those deprecation warnings for now. Of course, if a future Xuggle version removes the deprecated open() method then it will no longer be possible for JPCSP to support both old and new Xuggle. Hopefully by that time the future Xuggle will actually work well so we can do away with the old Xuggle completely.