Fixes #4160: DateTextBox: Calendar stuck open
Fixes #4160: DateTextBox: Calendar stuck open

Root cause of problem is that although clicking a label focuses on whatever
it references, and causes a focus event (according to firebug), that event
doesn't bubble up to document.body so dijit.focus doesn't know about it.

Check in leaves a smaller problem where clicking the label doesn't cause
_onFocus() to be called, even though focus went to widget.   Will deal with that
after 0.9, probably by following a labels for attribute in the dijit.popup code.

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@10198 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful