Correct: Thrasher: Disable ceph_objectstore_tool tests if old release missing command

Require ceph_objectstore_tool to be available on all OSD nodes
Log a message when tool is not available

Signed-off-by: David Zafman <dzafman@redhat.com>
ceph_manager: Randomly use ceph_objectstore_tool option rm-past-intervals

Signed-off-by: David Zafman <dzafman@redhat.com>
Temporary allow import to fail because we fail when a split happened

Signed-off-by: David Zafman <dzafman@redhat.com>
Re-enable ceph_objectstore_tool testing

Signed-off-by: David Zafman <dzafman@redhat.com>