[Bug 34917] dmraid devices not shown in "Computer" in 2.14.0-0ubuntu1

[jalonsom]

Public bug report changed:
https://launchpad.net/malone/bugs/34917

Description changed to:
    Now all partitions are shown in "Computer" as removable drives, I
    guess to provide a place to mount/unmount them easily.

    Well, this does not work with dmraid volumes: the individual
    partitions are shown (for example /dev/sda1 and /dev/sdb1) but not
    the dmraid volume (/dev/mapper/whatever1). It is likely that the
    useful partition to show is the dmraid one.

    So i think that:
      - dmraid partitions should be shown
      - Individual partitions forming the raid should be hidden by default and/or an option should be given to hide/show individual partitions in "Computer".