title: TemplateSyntaxError: expected token ')', got 'social'
body: <p>App Engine is giving me this error:</p>
  <pre><code>TemplateSyntaxError: expected token ')', got 'social'
  template (/srv/templates/base.html:5)
  </code></pre>
  <p>I'm not clear why. Here's the beginning of the <code>base.html</code> template:</p>
  <pre><code>{% set navlinks = [('Home', '/'),
                     ('Foo Bar', '/foo-bar'),
                     ('News', '/news'),
                     ('Contact', '/contact)] %}
  {% set social_icons = [('social-icons/facebook.html', 'https://www.facebook.com/blah'),
                         ('social-icons/twitter.html', 'https://twitter.com/blah'),
                         ('social-icons/linkedin.html','https://www.linkedin.com/in/blah/')] %}
  
  &lt;!-- remainder of the template... --&gt;
  </code></pre>