Add fuzzy dates with lw-timeago

Fixes #14
diff --git a/templates/article.html b/templates/article.html
index 553eb15..8814aab 100644
--- a/templates/article.html
+++ b/templates/article.html
@@ -24,7 +24,7 @@
     {{ article.content }}
   </div>
   <div class="article_meta">
-    <p>Posted on <time datetime="{{ article.date.isoformat() }}">{{ article.locale_date }}</time>
+    <p>Posted <time datetime="{{ article.date.isoformat() }}">{{ article.locale_date }}</time>
     {% if article.author %}
      by {% if AUTHORS_URL %} <a href="{{ SITEURL }}/{{ article.author.url }}">{{ article.author }}</a>{% else %}{{ article.author}}{% endif %}
     {% endif %}
@@ -59,7 +59,15 @@
         </script>
         <noscript>Please enable JavaScript to view the <a href="http://disqus.com/?ref_noscript">comments powered by Disqus.</a></noscript>
     </div>
-    {% endif %}
+  {% endif %}
+
+  {% if FUZZY_DATES %}
+  {% block scripts %}
+  {{ super() }}
+  <script type="text/javascript">lw_timeago.doReplace()</script>
+  {% endblock %}
+  {% endif %}
+
 </article>
 {% endblock %}
 
diff --git a/templates/base.html b/templates/base.html
index b0d97de..1200546 100644
--- a/templates/base.html
+++ b/templates/base.html
@@ -9,6 +9,11 @@
   <script src="//cdnjs.cloudflare.com/ajax/libs/less.js/1.6.1/less.min.js" type="text/javascript"></script>
   {% endif %}
 
+
+  {% if FUZZY_DATES %}
+  <script src="{{ SITEURL }}/theme/js/lw-timeago/lw-timeago.js" type="text/javascript"></script>
+  {% endif %}
+
   <link rel="stylesheet" type="text/css" href="{{ SITEURL }}/theme/css/pygments.css">
   <link href="//netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.min.css" rel="stylesheet">
 
@@ -138,6 +143,7 @@
     </div>
   </main>
 
+  {% block scripts %}
   {% if SCROLL_TO_CONTENT %}
   <script type="text/javascript">
     if (window.location.pathname != '/' && window.location.pathname != '/index.html'){
@@ -169,5 +175,7 @@
     }
   </script>
   {% endif %}
+
+  {% endblock scripts %}
 </body>
 </html>