updated pixel tag

Author: svetly

_includes/tail.html

@@ -1,6 +1,22 @@
     {% include navigation.html %}
 
-
+    <script type="text/javascript">
+    adroll_adv_id = "MW5HZIP5UVFRZNJVKSPCR4";
+    adroll_pix_id = "2DYOCKCHRVCTZGO3SGMR5U";
+    (function () {
+    var oldonload = window.onload;
+    window.onload = function(){
+        __adroll_loaded=true;
+        var scr = document.createElement("script");
+        var host = (("https:" == document.location.protocol) ? "https://s.adroll.com" : "http://a.adroll.com");
+        scr.setAttribute('async', 'true');
+        scr.type = "text/javascript";
+        scr.src = host + "/j/roundtrip.js";
+        ((document.getElementsByTagName('head') || [null])[0] ||
+        document.getElementsByTagName('script')[0].parentNode).appendChild(scr);
+        if(oldonload){oldonload()}};
+    }());
+    </script>
     <script src="//platform.twitter.com/oct.js" type="text/javascript"></script>
     <script type="text/javascript">
         twttr.conversion.trackPid('l4ki6');