Remove button dragging

[rbuzu]

Hi,

First of all, thanks for great lib that saved me a lot of time.

I have discovered one annoying issue regarding remove button.
Whenever you click on remove button and move mouse, node is moved and removed on mouse up action. I think that expected behaviour should be that node is not selected and when cursor is out of remove button action should not take place.

Is there any simple way to make remove button not selecting node?