Menu would bounce around in some cases because the
refreshPosition() would calculate different results
based on different state of the component and previous
render cycle CSS classes.
Also I found that the render function calls causes
in an infinite loop while open because of refreshPosition
will cause a state change which will rerender the function.
Fixed that with the shouldComponentUpdate which checks
if state has actually changed in between renders.
Signed-off-by: Juho Heikka <juho.heikka@gmail.com>
Juho Heikka