Fix --all flag in gwf-local, gwf-workflow-graph and gwf-clean.
Merge branch 'hotfix/cleanup-all-flag' into develop
Give an error whenever a status request cannot be satisfied.

In some cases we cannot tell the user anything about a workflow/task
(e.g. before it started running or if it does not exist).
Merge branch 'hotfix/fix-error-handling-in-status' into develop