family relations page redirects to public profile when toggling to "No" option
toggling the "family relations" setting to "No, I don't have relatives in the PGP" should not cause the form to redirect to the user's public profile
Always redirect to Family Relations page after an update, regardless of what happens. (closes #2981)
(It used to be that the user would be redirected to their public profile page if they answered "no" to having family relations in the PGP, which first of all was inconsistent and secondly could have been disabled by the "sectioning off" of Tapestry.