Cocoa will bring an unowned window to the front of its level when it's clicked,
but it doesn't do that for owned windows.  The old code went out of its way to
make owned windows behave like unowned windows in this respect.  That was
exactly backward.  We wish we could control whether windows are raised on a
click.  We don't have that opportunity for unowned windows, but, by ripping
out a bunch of code, we do for owned windows.