Switching to full-page-override, stella layout, two-layout choices, etc.

Signed-off-by: Joe Whitsitt <joe-whitsitt@uiowa.edu>
Fix for announcements based on audience?

Signed-off-by: Joe Whitsitt <joe-whitsitt@uiowa.edu>
layout change from pond to stella.

Signed-off-by: Joe Whitsitt <joe-whitsitt@uiowa.edu>