Garden-o-matic: Display bugs from the commit BUG=... line in commit summary

Tools/GardeningServer/styles/notifications.css

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 131 matching lines @@
         ol.notifications>li ul.causes>li>div.description>span>span.author {
             padding: 0 0 0 5px;
             font-style: italic;
         }
 
         ol.notifications>li ul.causes>li>div.description>span>span.reviewer {
             color: Gray;
         }
 
         ol.notifications>li ul.causes>li>div.description>span>span.bugID::before {
-            content: 'bug ';
+            content: '[bug ';
             padding-left: 8px;
         }
 
+        ol.notifications>li ul.causes>li>div.description>span>span.bugID::after {
+            content: ']';
+        }
+
         ol.notifications>li ul.causes>li>div.description>span>span.bugID>a {
             cursor: hand;
             pointer-events: auto;
         }
 
         ol.notifications>li ul.causes>li>div.description>span>span.reviewer::before {
             content: ' (';
         }
 
         ol.notifications>li ul.causes>li>div.description>span>span.reviewer::after {
@@ skipping 61 matching lines @@
         background-color: #bfdfff;
     }
 
     ol.notifications table.failures tbody tr.IMAGE td:first-child span {
         background-color: #69f;
     }
 
     ol.notifications table.failures tbody tr.IMAGE\+TEXT td:first-child span {
         background-color: #96f;
     }