Clicks toggling run made conditional

'body' clicks now toggle run only if there is no backside element.
Geometry of resources doesn't change

As a result of some kinds of drags
Commented out drag id code

No longer needed.
Improved layout

When a resource was dragged it sometimes became 100x100 pixels. And the
layout of surrounding elements changed.

Some improvements to drag and drop.
Small drags working

Can now drag widgets a small amount so they seem to be dropped on
themselves.