Arvados

Ensure that tests exist for arv keep put to set collection replication level correctly, and replicate individual blocks correctly, in the following circumstances:

• API server's default replication level is 1 (lower than the "default default" 2)
• API server's default replication level is 3 (higher than 2)
• API server's default replication level is 1, and the user calls arv keep put --replication=3 (manually set higher than the API server's default)
• API server's default replication level is 3, and the user calls arv keep put --replication=1 (manually set lower than the API server's default)

If any of these tests fail, make them pass.