trooper-o-matic: Add patch attempt timeline view to CQ graphs

appengine/trooper_o_matic/ui/tom-cq-graphs.html

 <!--
 Copyright 2014 The Chromium Authors. All rights reserved.
 Use of this source code is governed by a BSD-style license that can be
 found in the LICENSE file.
 -->
 
 <link rel="import" href="../lib/sugar.html">
 <link rel="import" href="../model/cq-graph.html">
 <link rel="import" href="../model/cqstats-graph-data.html">
 <link rel="import" href="../model/cqstats-ratio-graph-data.html">
 <link rel="import" href="../model/json-graph-data.html">
 <link rel="import" href="./tom-cq-graph.html">
 
 <polymer-element name="tom-cq-graphs" attributes="project">
   <template>
     <h1>Commit Queue Status</h1>
+    Click on graph points for detailed information.
     <template repeat="{{ graph in graphList }}">
       <tom-cq-graph graph="{{ graph }}"></tom-cq-graph>
     </template>
   </template>
   <script>
     Polymer({
       ready: function() {
         this.graphList = [
           this._falseRejectGraph(),
           this._timeGraphs(),
@@ skipping 40 matching lines @@
             'percent', 'false rejects', data, alerts, itemAlertThreshold);
       },
       _queueLengthGraph: function() {
         var url = '/project/' + this.project + '/cq-length';
         return new CQGraph('Commit Queue Length', 'count', '',
             new JSONGraphData(url));
       },
     });
   </script>
 </polymer-element>