Display expected outputs in legacy task view

appengine/swarming/templates/user_task.html

 {% extends "swarming/base.html" %}
 
 
 {% block headers %}
 <style>
   h1 {
     margin-top: 10px;
     margin-bottom: 10px;
   }
 
@@ skipping 278 matching lines @@
                 {{request.properties.inputs_ref.isolated}}
               </a>
             </td>
           </tr>
           <tr title="Extra arguments if applicable">
             <td>Extra args</td>
             <td>
               {{request.properties.extra_args|join(' ')}}<br>
             </td>
           </tr>
+          <tr title="Expected output files">
+            <td>Expected outputs</td>
+            <td>
+                {% for output in request.properties.outputs %}

[M-A Ruel, 2016/11/01 13:35:21]

Note that this could be None, in this case this will likely crash (?) Test by
viewing an old task created without this schema.

+                {{output}}<br/>
+                {% endfor %}
+            </td>
+          </tr>
         {% else %}
           {# Raw command #}
           <tr title="Actual command executed by the bot.">
             <td>Commands</td>
             <td>
               {% if request.properties.commands %}
                 {{request.properties.commands[0]|join(' ')}}<br>
               {% elif request.properties.command %}
                 {{request.properties.command|join(' ')}}<br>
               {% else %}
@@ skipping 295 matching lines @@
 
 {% set output = task.get_output() %}
 {% if output is not none %}
 <h3>Output:</h3>
 <pre>
 {{task.get_output().decode('utf-8', 'replace')}}{% if is_running %}<p class="console"><span class="blink">|</span>{% endif %}
 </pre>
 {% endif %}
 
 {% endblock %}