Merge branch 'http2' into 'master'

Add HTTP/2 support to NGINX configs

See merge request !9

setup/start/nginx/appconfig.ejs

@@ -6,10 +6,10 @@ map $http_upgrade $connection_upgrade {
 
 server {
 <% if (vhost) { %>
-    listen       443;
+    listen       443 http2;
     server_name  <%= vhost %>;
 <% } else { %>
-    listen       443 default_server;
+    listen       443 http2 default_server;
 <% } %>
 
     ssl                  on;