Remove mount point from cephjournal volume definition
rearrange Ceph storage options in OpenStack settings and setup wizard

On CentOS and Ubuntu, present a list of checkboxes to enable LVM and/or
Ceph for volumes, Ceph for images, and Swift and/or Ceph for objects,
with all checkboxes off by default. On RHOS, Ceph options are disabled
in the wizard and absent from the settings tab.