Update with api_root

Author: tomhamiltonstubber

_config.yml

@@ -37,3 +37,4 @@ social:
     url: http://github.com/tutorcruncher
 
 socket_url: https://cdn.tutorcruncher.com/socket/latest/socket.js
+socket_api_root: https://socket-beta.tutorcruncher.com

_examples/appointments.html

@@ -24,6 +24,7 @@
 
 <script>
   socket('{{ site.socket_key }}', {
+    api_root: '{{ site.socket_api_root }}',
     router_mode: 'history',
     element: '#book-apts',
     mode: 'appointments'

_includes/contact.html

@@ -20,6 +20,7 @@ <h2>Contact Us</h2>
 </section>
 <script>
   socket('{{ site.socket_key }}', {
+    api_root: '{{ site.socket_api_root }}',
     mode: 'enquiry',
     element: '#socket-enquiry'
   });

_includes/our-tutors.html

@@ -44,6 +44,7 @@ <h3 class="tutor-sign-up">Interested in becoming a tutor?</h3>
 </section>
 <script>
   socket('{{ site.socket_key }}', {
+    api_root: '{{ site.socket_api_root }}',
     router_mode: 'history'
   });
 </script>