move ship_utilities to install task (from ceph test)

No need to install ceph just to get daemon-helper, adjust-ulimits, etc..
These utilities are used by lots of tasks, not just ceph.

Signed-off-by: Sage Weil <sage@redhat.com>
ceph_deploy: use new ship_utilities location

Signed-off-by: Sage Weil <sage@redhat.com>
Merge pull request #293 from ceph/wip-ship-utilities

move ship_utilities to install task (from ceph test)