Also export template hash

lib/models/layergroup-token.js

@@ -4,7 +4,7 @@
  * @param {String} token might match the following pattern: {user}@{tpl_id}@{token}:{cache_buster}
  */
 function parse (token) {
-    var signer, cacheBuster;
+    var signer, cacheBuster, templateHash;
 
     var tokenSplit = token.split(':');
 
@@ -17,7 +17,7 @@ function parse (token) {
     if (tokenSplit.length > 1) {
         signer = tokenSplit.shift();
         if (tokenSplit.length > 1) {
-            /* var template_hash = */tokenSplit.shift(); // unused
+            templateHash = tokenSplit.shift();
         }
         token = tokenSplit.shift();
     }
@@ -25,7 +25,9 @@ function parse (token) {
     return {
         token: token,
         signer: signer,
-        cacheBuster: cacheBuster
+        cacheBuster: cacheBuster,
+        templateHash: templateHash
     };
 }
+
 module.exports.parse = parse;