This update for product-composer fixes the following issues:

Update to version 0.6.16:

  - merge updateinfo's with same id into one
  - error out on updateinfo with same id, but non-mergable content

Update to version 0.6.15:

  * Support updateinfo handling in arch specific meta data

Update to version 0.6.14:

  * option to disable joliet extensions on media
  * no joliet extensions on source and debug media anymore