Also:
* Something I missed from the HIG: standardize Help button position

Change-Id: Iaac65bd277d87ff58883f287808a5c5b804cc04e
Reviewed-on: https://gerrit.libreoffice.org/12015Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>