ZA: redirect person/../appearances/ to person/../

The ```person/../appearances``` url (accessible via breadcrumbs or manual editing of the url on a page such as [this](http://www.pa.org.za/person/sibongile-pearm-tsoleli/appearances/committee)) currently displays 'No appearances were found.' (e.g. [this page](http://www.pa.org.za/person/sibongile-pearm-tsoleli/appearances/)). This issue has [been flagged](https://github.com/mysociety/pombola/blob/a71412c8de6c7dcd97933df782c96d9cd43ae595/pombola/south_africa/urls.py#L54) but depends on #930. This temporary fix redirects the user to the person's profile and avoids an error.