api2/access.rs: add ticket api

www/Utils.js

@@ -6,6 +6,12 @@ console.log("Starting Backup Server GUI");
 Ext.define('PBS.Utils', {
     singleton: true,
 
+    updateLoginData: function(data) {
+	Proxmox.CSRFPreventionToken = data.CSRFPreventionToken;
+	Proxmox.UserName = data.username;
+	Ext.util.Cookies.set('PBSAuthCookie', data.ticket, null, '/', null, true );
+    },
+
     constructor: function() {
 	var me = this;