Fixed: when clicking and dragging inside a menu, mouseEntered and mouseExited was mixed up for custom views.
Merge pull request #1811 from stewa/fix-menu-custom-views-reverse-mouse-event

Fixed: mouseEntered and mouseExited mixed up for custom views in menu

Previously, when clicking and dragging inside a menu, mouseEntered and mouseExited were sent to the wrong views.

This commit correctly sends mouseExited to the previous hovered view, then mouseEntered to the new hovered view.