Fixed Footer About Link Button from "wrapping" other buttons.

Signed-off-by: Joe Whitsitt <joe-whitsitt@uiowa.edu>
Close the gap between footer content and uiowa footer.

Signed-off-by: Joe Whitsitt <joe-whitsitt@uiowa.edu>
Added A-Z Index footer link

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