GMaps related JS changed to use new google namespace. Google is going to change permanently in the future the way to load its services, so better stay safe. Also this commit shows uses of the new melange.js module. Fixes Issue 634.

<tr align="left">
{% block first %}
  <th class="first" align="right">Title</th>
{% endblock first %}
  <th>Difficulty</th>
  <th>Type</th>
  <th>Time To Complete</th>
  <th>Status</th>
  <th>Mentors</th>
</tr>