View order details screen

Butchered your page (you said I could). In the process I broke the JS for adding new downloads with the "add download to order" button, because it no longer uses tables.

I think the "None" on the select menu should say "Select Download", as I removed the title before it.

Overall it's much more responsive:

https://cloudup.com/cXkZhAj6CDa
https://cloudup.com/cFaiQQshjSM
https://cloudup.com/cPb2FTrxA8U

Also taken quantities into account:

https://cloudup.com/cLx5cv5gmI0
https://cloudup.com/cquHRXaIsYc
https://cloudup.com/cdXVtMBsP40