message: frontend: After saving role binding, change active NS to that of binding
  When creating / editing a role binding, on save, set the active
  namespace to that of the binding so that the binding is visible on the
  list page that we redirect to.
diff: import React from 'react';
  import Helmet from 'react-helmet';
  +import { connect } from 'react-redux';
  import { Link } from 'react-router';
  import { k8s, k8sCreate, k8sKinds, k8sPatch } from '../../module/k8s';
  import { util } from '../../module/k8s/util';
  -import { getNamespacedRoute } from '../../ui/ui-actions';
  +import { getNamespacedRoute, actions as UIActions } from '../../ui/ui-actions';
  import { MultiListPage, List } from '../factory';
  import { RadioGroup } from '../modals/_radio';
  import { confirmModal } from '../modals';
  @@ -215,7 +216,8 @@ const Section = ({label, children}) => <div className="row">
  </div>
  </div>;
  -class BaseEditRoleBinding extends SafetyFirst {
  +const BaseEditRoleBinding = connect()(
  +class BaseEditRoleBinding_ extends SafetyFirst {
  constructor (props) {
  super(props);
  @@ -282,6 +284,9 @@ class BaseEditRoleBinding extends SafetyFirst {
  ).then(
  () => {
  this.setState({inProgress: false});
  + if (metadata.namespace) {
  + this.props.dispatch(UIActions.setActiveNamespace(metadata.namespace));
  + }
  history.push(getNamespacedRoute('rolebindings'));
  },
  e => this.setState({error: e.message, inProgress: false})
  @@ -351,7 +356,7 @@ class BaseEditRoleBinding extends SafetyFirst {
  </div>
  </div>;
  }
  -}
  +});
  export const CreateRoleBinding = ({location: {query}, params}) => <BaseEditRoleBinding
  metadata={{
  