perform filepath translation on first display

Signed-off-by: Yannick GICQUEL <ygicquel@gmail.com>
file/new display parsed buffer on stdout for debug

Signed-off-by: Yannick GICQUEL <ygicquel@gmail.com>
window title update

Signed-off-by: Yannick GICQUEL <ygicquel@gmail.com>