remove --delete-configs option and make this the default action when …

…deleting a cluster

fix merge conflict in quickstart.sh

update version to rc9, removed commented out code in cluster.go, rena…

…med clusterutilities.go

fix Makefile target for rmdata image, fix pgo-backrest-repo dockerfil…

…e to match rhel version

change .ssh directory perms to match the postgres perms on .ssh dirs …

…to support both nfs and fsgroup file system types with the pgbackrest feature

update version number

Add pgo scheduler (CrunchyData#535)

* Add pgo scheduler

* Fix schedule help text

* Add pgo backup note to example

update version numbers for new tag

update version numbers in various examples and in the pgo.yaml sample

fix missing comma