#1 Offer single job status feedback

[chahuistle]

When viewing the results of a workflow in the monitoring tab, it would be great to be able to see the status of every single job. In the case of workflows that completed successfully, this is not a problem, but in the case of failed workflows, one has to inspect every single job to find the problem (see attached picture).

It would be nice to have a red/green icon next to each job. This icon would be red if there was a problem (it'd be a matter of checking the content of the UNICORE_SCRIPT_EXIT_CODE file) or it would be green if the exit status was 0.