Persist settings for workflow table and add "last modified" field.

Currently if I sort the workflows table by a field or change the rows per page, it is reset when navigating away. Which means an extra step every time I go back to the page after checking the workflow instance. This problem could be helped by persisting the settings and/or having extra fields on the workflow table. Last modified and last executed fields would work well.

Small changes but I think they would really improve the process of editing and testing workflows.