add support to set 'osd pool default size'

Signed-off-by: Danny Al-Gaaf <d.al-gaaf@telekom.de>
add 'mon initial members'

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
Merge remote-tracking branch 'remotes/origin/feature/wip-da-fixes-for-cuttlefish' into cuttlefish

Conflicts:
	manifests/conf.pp
	spec/classes/ceph_conf_spec.rb