Allow removing user app role from CLI

The CLI setrole command allows setting the "admin" or "user" role per user per app, but doesn't allow setting "none". It's a straight-forward addition to allow that too.

added App::Dashboard label

and it would be handy to be able to set/unset roles for all apps in one swoop, for example if a user should only have access to one app

I quickly added the option to set the role "none". It's untested but I have good hopes it will work, please let me know if it doesn't and I'll sit down for it.

I haven't added the "all apps option", sorry: that was a bit more work and I figured it should be easy enough to script from your end.

assigned to @arie

changed milestone to %2.11

created branch 191-allow-removing-user-app-role-from-cli to address this issue

mentioned in merge request !172 (merged)

mentioned in commit 97d464fe

closed with merge request !172 (merged)