Merge pull request #31 from anvaka/patch-1

Doesn't seem like vm is used anymore.

Author: yyx990803

vue-touch.js

@@ -82,7 +82,6 @@
 
       update: function (fn) {
         var mc = this.mc
-        var vm = this.vm
         var event = this.arg
         // teardown old handler
         if (this.handler) {