Hovermenu's, Hovering

* Hovermenu's: widgets now have "layered" icons; the outer icon shows
"just" the type of the icon. Hovering over it reveals the sub actions
for the widget. The icon of the widget type replaces the "edit" icon
(Conny)
* Hovermenu's: rows now have "layered" icons; the outer icon shows as a
"row" icon, the "delete" and "edit" of the row are revealed if you hover
it. This reduces the # of icons visible at once (less is more), and also
more clearly indicates
* Placeholders now also have nxs-hovering when they are being hovered
upon