Make Heka collect Ceph logs

ansible/roles/ceph/tasks/bootstrap_osds.yml

ansible/roles/ceph/tasks/generate_cluster.yml

ansible/roles/ceph/tasks/start_mons.yml

ansible/roles/ceph/tasks/start_osds.yml

ansible/roles/ceph/tasks/start_rgws.yml

ansible/roles/ceph/templates/ceph.conf.j2

ansible/roles/common/templates/heka-openstack.toml.j2

docker/ceph/ceph-base/Dockerfile.j2

docker/ceph/ceph-base/extend_start.sh

docker/ceph/ceph-mon/extend_start.sh

docker/ceph/ceph-osd/extend_start.sh