[RFE] quads-web real time assignment progress

[grafuls]

Is your feature request related to a problem? Please describe.
The way we display the progress bar on the assignments page is static, in the sense that it loads with the page load but does not get updated in real time. Would be nice to see this progress advance without the need to reload the page.

Describe the solution you'd like
Have some ajax query polling every couple seconds to get the progress in real time. Cancel the ajax polling for completed assignments.