clean cmake

Signed-off-by: xiehuc <xiehuc@gmail.com>
add a QUICK_QUIT Hide option

Signed-off-by: xiehuc <xiehuc@gmail.com>
update python bindings

Signed-off-by: xiehuc <xiehuc@gmail.com>
add python2 compibility

Signed-off-by: xiehuc <xiehuc@gmail.com>