Add script to randomly generate the site title images

To switch between Aral speaking and Laura speaking
Towards #144

layouts/_default/baseof.html

@@ -19,6 +19,6 @@
     <footer>
       {{ partial "footer.html" . }}
     </footer>
-    {{ partialCached "scripts.html" . }}
+    {{ partial "scripts.html" . }}
   </body>
 </html>
\ No newline at end of file