update name in unit location pane whenever display name is changed

cms/static/coffee/src/views/unit.coffee

@@ -185,6 +185,7 @@ class CMS.Views.UnitEdit.NameEdit extends Backbone.View
     # Treat the metadata dictionary as immutable
     metadata = $.extend({}, @model.get('metadata'))
     metadata.display_name = @$('.unit-display-name-input').val()
+    $('.unit-location .editing .unit-name').html(metadata.display_name)
     @model.set('metadata', metadata)
 
 class CMS.Views.UnitEdit.LocationState extends Backbone.View

cms/templates/widgets/units.html

@@ -18,7 +18,7 @@ This def will enumerate through a passed in subsection and list all of the units
     <div class="section-item ${selected_class}">
       <a href="${reverse('edit_unit', args=[unit.location])}" class="${unit_state}-item">
         <span class="${unit.category}-icon"></span>
-        ${unit.display_name}
+        <span class="unit-name">${unit.display_name}</span>
       </a>
       % if actions:
       <div class="item-actions">