Global toggle for disqus. Use identifier as title incase urls change …

…in the future

_config.yml

@@ -23,6 +23,7 @@ load_platform: true
 project_title: Polymer
 latest_version: 0.0.20130711
 add_permalinks: true # adds permalinks to heading tags.
+load_disqus: true
 
 authors:
   ebidel:

_includes/disqus.html

@@ -1,13 +1,17 @@
+{% if site.load_disqus %}
 <hr>
 
 <div id="disqus_thread"></div>
 <script>
   var disqus_shortname = 'polymer-project';
   var disqus_url = location.protocol + '//' + location.host + '{{page.url}}';
+  {% if page.title %}var disqus_identifier = "{{page.title | downcase | replace:' ','-'}}";{% endif %}
 
   (function() {
     var dsq = document.createElement('script'); dsq.type = 'text/javascript'; dsq.async = true;
     dsq.src = '//' + disqus_shortname + '.disqus.com/embed.js';
     (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(dsq);
   })();
 </script>
+
+{% endif %}