Update View/Helper/UploadHelper.php

Hi,

Thank's for your nice plugin ! Really easy to use, and very simple.

I had a bug with multiple Upload->edit in my View. I found that the JS function createUploader() was execute just once. I change the minimum code to make it work.
Surely, is not the best solution but is working for me.

I'm the only one with this bug ?

Nico