Qt: InputSlider: wheeling on it will seek of 1% in position.
(cherry picked from commit af7cf494)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Qt: Don't accept focus on the input slider. Never. Just process mouseEvents...
(cherry picked from commit 47591074)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>