Prevent last_indexand parameters leak.

Author: Ndpnt

lib/routes.js

@@ -41,7 +41,7 @@
 
     clean_path: function(path) {
       path = path.split("://");
-      last_index = path.length - 1;
+      var last_index = path.length - 1;
       path[last_index] = path[last_index].replace(/\/+/g, "/").replace(/\/$/m, '');
       return path.join("://");
     },
@@ -109,7 +109,7 @@
         throw new Error("Too many parameters provided for path");
       }
 
-      parameters = this.prepare_parameters(required_parameters, args, opts);
+      var parameters = this.prepare_parameters(required_parameters, args, opts);
       // Array#indexOf is not supported by IE <= 8, so we use custom method
       if (Utils.smartIndexOf(optional_parts, 'format') !== -1) {
         this.set_default_format(parameters);