reg and login buttons on index && remove list method && facebook centralize

app/Resources/views/base.html.twig

@@ -18,6 +18,27 @@
     {% block footer %}{% endblock %}
 </footer>
 
-{% block javascripts %}{% endblock %}
+{% block javascripts %}
+    <script type="text/javascript">
+        window.fbAsyncInit = function () {
+            FB.init({
+                appId: '320599508311862',
+                xfbml: true,
+                version: 'v2.8'
+            });
+        };
+
+        (function (d, s, id) {
+            var js, fjs = d.getElementsByTagName(s)[0];
+            if (d.getElementById(id)) {
+                return;
+            }
+            js = d.createElement(s);
+            js.id = id;
+            js.src = "//connect.facebook.net/en_US/sdk.js";
+            fjs.parentNode.insertBefore(js, fjs);
+        }(document, 'script', 'facebook-jssdk'));
+    </script>
+{% endblock %}
 </body>
 </html>