o start Rex support for FreeBSD virtualization with:
  - jail
  - ezjail
  - xen
youps, lost BHyVe...
o adding freebsd defautl jail support:
  - list (list all running jail)
  - info (get info for selectionned jail)
FreeBSD Jail Virtualization
  +> adding list.pm, return array of hash (work on FREEBSD_9.2)
  +> adding info.pm, return hash (work on FREEBSD_9.2)
  ~> need some comments on this work.