Replace nick_name and its variants with public_name. Remove the soc/templates/soc/person/edit.html template, since it does not appear to be referenced anywhere (and contained a nick_name reference that would otherwise need to be remedied). Patch by: Todd Larsen

<tr align="left">
  <th class="first" align="right">Account</th>
  <th>Email</th>
  <th>Public name</th>
  <th>Link ID</th>
</tr>