[dim] dim-0.4.8-mv6-pb1

[Philippe Bergheaud]

Do not use this version (work in progress).

dim-0.4.8-mv6-pb1
  Merged dim-0.4.8-mv5-pb1.
  Bug fixes:
        dim merge removes the scan file.
        dim umount updates desc2 metadata.
  Know bugs:
        dim remove should reparent desc2.

Philippe