Rework key handling, tweak configuration

Use ceph::key instead of an exec.
Removed ceph::conf (this should be managed elsewhere)
Added ceph::conf::mds
Rework key handling, tweak configuration

Use ceph::key instead of an exec.
Removed ceph::conf (this should be managed elsewhere)
Added ceph::conf::mds
Merge branch 'mds-rework' of github.com:dmsimard/puppet-ceph into mds-rework

Conflicts:
	manifests/mds.pp
Merge pull request #1 from dmsimard/mds-rework

Mds rework