upload confusion

[rashley-iqt]

Description

because of an id conflict in the upload control, the htmlFor would always find the first instance of a fileUpload element in the DOM tree, leading to confusing behavior from this in the upload event

Environment

• 0.2.3

Steps to reproduce

1. Click on the file upload button in the second instance of the file upload control
2. select a file to upload

Expected results

the filename would populate in the upload area of the second dataset control.

Actual results

the filename would always populate in the upload area of the first dataset control.