openTrialAppraisalExists didn't check archived evaluations

EV-532

The method openTrialAppraisalExists only considered 'closed' and
'archived' as non-open status. It now checks 'archived%' as the
status for archived evaluations.
Merge pull request #70 from osu-mist/feature/EV-532-opentrialexists

openTrialAppraisalExists didn't check archived evaluations