…animation going on we don't want to stop it. Otherwise big mouse wheel zooms are broken.
…in ZoomAnimation and PosAnimation
…ses it. Use it to detect zoom animation finishing.
… to work in most cases.
…the same time.
…p a map zoom. Still doesn't quite work right. Stopping a zoomPan or PanAnimation does work however. Code is all cludgy :) refs #2560