Adding sense of self to the UI, cleaning up routing, adding third (detail) column

app/assets/javascripts/components/components/display_name.jsx

@@ -1,4 +1,5 @@
 import ImmutablePropTypes from 'react-immutable-proptypes';
+import PureRenderMixin    from 'react-addons-pure-render-mixin';
 
 const DisplayName = React.createClass({
 
@@ -6,6 +7,8 @@ const DisplayName = React.createClass({
     account: ImmutablePropTypes.map.isRequired
   },
 
+  mixins: [PureRenderMixin],
+
   render () {
     let displayName = this.props.account.get('display_name');