Show evaluation stats selectively

Show only open and awaiting evaluation stats.
Also show the 3 most recent closed evaluations.
Merge branch 'master' into Issue2182
Fixed tests
Made changes to test case for showing evaluation stats
Merge branch 'master' into Issue2182
[2182] EvaluationStatsPageAction: Illegal argument

Fixes #Issue2182
Merge branch 'master' into FeedbackSessions