message: Make ClusterServiceClass link cluster scoped
  ClusterServiceClass is not namespaced.
diff: @@ -420,7 +420,7 @@ export class Nav extends React.Component {
  </NavSection>
  <NavSection text="Service Catalog" icon="pficon pficon-catalog" required={FLAGS.SERVICE_CATALOG} >
  - <ResourceNSLink resource="clusterserviceclasses" name="Service Classes" onClick={this.close} />
  + <ResourceClusterLink resource="clusterserviceclasses" name="Service Classes" onClick={this.close} />
  <ResourceNSLink resource="serviceinstances" name="Service Instances" onClick={this.close} />
  <ResourceNSLink resource="servicebindings" name="Service Bindings" onClick={this.close} />
  </NavSection>
  