Don't show Olark for non-trial/non-pro users.

templates/base.html

@@ -417,6 +417,7 @@
     {% include 'snipts/snipt-edit-js-template.html' %}
   </div>
 {% endblock %}
+{% if request.user.profile.get_account_age <= 7 or request.user.profile.is_pro %}
   {% if not debug %}
     {% block olark %}
       <!-- begin olark code -->
@@ -457,6 +458,7 @@
 
     {% endblock %}
   {% endif %}
+{% endif %}
 
 {% include 'analytics.html' %}