Resolves issues 18 and 19 adding more compatibility for Postgres 10 (#20)
Resolves issues 18 and 19 adding more compatibility for Postgres 10 (#20)

* Fix postgres-setup script for certain postgres version
* Altered --xlog-method to -X for Postgres 10 support. Backward compatible.


YanChii/ansible-role-postgres-ha,YanChii/ansible-role-postgres-ha,YanChii/ansible-role-postgres-ha