dashboard: fix node coloring

circle/dashboard/static/dashboard/node-list.js

 $(function() {
   $(document).ready( function() {
-    colortable();
-  });
-
     // find disabled nodes, set danger (red) on the rows
-  function colortable()
-  {
-	$('.false').closest("tr").addClass('danger');
-	$('.true').closest("tr").removeClass('danger');
-  }
+    $('.node-disabled').closest("tr").addClass('danger');
+  });
 });

circle/dashboard/templates/dashboard/node-list/column-monitor.html

 {% load sizefieldtags %}
 {% load i18n %}
 
+<span class="{% if not record.enabled %}node-disabled{% endif %}"></span>
 <i class="fa fa-gears"></i> {% trans "CPU" %}
 <div class="progress pull-right">
   <div class="progress-bar progress-bar-success" role="progressbar"