message: linkTo registrations tab in node-navbar
diff: {{node-navbar/link nodeId=node.id useLinkTo=false destination='wiki'}}
  {{node-navbar/link nodeId=node.id useLinkTo=true destination='analytics'}}
  {{#unless node.registration}}
  - {{node-navbar/link nodeId=node.id useLinkTo=false destination='registrations'}}
  + {{node-navbar/link nodeId=node.id useLinkTo=true destination='registrations'}}
  {{/unless}}
  {{#if node.currentUserIsContributor}}
  