* Remove pool option from redhat_subscription.
* Remove proxmox_default_behavior option from proxmox_kvm.
* Remove the logging option from ejabberd_user.
* Remove the ack_params_state_absent option from consul.
* irc: change defaults of use_tls and validate_certs to true.
* rhsm_repository: remove states present and absent.
* Re-add 'using'.
* Fix typo.
* Rename use_ssl to use_tls, keep use_ssl as an alias.
* Add validate_certs option.
* Add changelog fragment and recommend setting TLS related settings to true.
* Fix formatting.
* Update documentation to use use_tls=true and validate_certs=true.