To support Chinese input software on mobile

To support Chinese input software on mobile, it should listen "input" in setupEvents() at line 142.
```
    setupEvents: function() {
      this.el.on("input", ".autocomplete-field", $.proxy(this.onKeyUp, this));
      this.el.on("keyup", ".autocomplete-field", $.proxy(this.onKeyUp, this));
```

Good job! Thanks.