Add an action to cancel all builds in a jobset eval

src/root/jobset-eval.tt

@@ -42,6 +42,7 @@ c.uri_for(c.controller('JobsetEval').action_for('view'),
       </a>
       <ul class="dropdown-menu">
         <li><a href="[% c.uri_for(c.controller('JobsetEval').action_for('release'), [eval.id]) %]">Create a release from this evaluation</a></li>
+        <li><a href="[% c.uri_for(c.controller('JobsetEval').action_for('cancel'), [eval.id]) %]">Cancel all scheduled builds</a></li>
       </ul>
     </li>
   [% END %]

src/root/topbar.tt

@@ -91,7 +91,7 @@
         class = "" %]
       [% INCLUDE menuItem
         uri = c.uri_for(c.controller('Admin').action_for('clear_queue_non_current'))
-        title = "Clear all non-running old builds from queue"
+        title = "Clear scheduled non-current builds from queue"
         confirmmsg = "Are you sure you want to clear the queue?"
         class = "" %]
       [% INCLUDE menuItem