Changelog:
e6447bd library: do not always add --yes in batch mode
0d07232 purge: rm service-cid files
932abbc switch2container: do not serialize the ceph-crash migration
8f26ffd rolling_update: enforce ceph-container-engine
735965e ceph-common: enable rhcs tools repo for monitoring
3ba27c9 rolling_update: exclude clients from node-exporter
1b424ad purge: zap and destroy db and wal devices for lvm batch
ba76102 facts: support device aliases for (dedicated|bluestore_wal)_devices
e3165f9 mon: fix cephx disabled deployment
bb1f66c switch2container: fix mon quorum check
2414184 common: ensure shaman returns right repo
fdf4377 Fix typo and broken link for documenting RGW frontends
6fe14c6 requirements.txt: Move the six dependency into the general requirements