branch master updated (fac34df -> ffba7d4)

[Ludovic Courtès]

civodul pushed a change to branch master
in repository guix.

      from  fac34df   gnu: Add python-pyusb.
       new  060d62a   system: Add (gnu system mapped-devices).
       new  374f14c   system: Move 'luks-device-mapping' to (gnu system 
mapped-devices).
       new  1ea507b   services: Move 'device-mapping-service' to (gnu system 
mapped-devices).
       new  4da8c19   mapped-devices: 'mapped-device-service' takes a 
<mapped-device>.
       new  ffba7d4   mapped-devices: LUKS partitions can be designated by 
their UUID.

The 5 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "adds" were already present in the repository and have only
been added to this reference.


Summary of changes:
 doc/guix.texi                 |   20 ++++++-
 gnu-system.am                 |    1 +
 gnu.scm                       |    3 +-
 gnu/services/base.scm         |   22 +-------
 gnu/system.scm                |   34 +----------
 gnu/system/file-systems.scm   |   31 ----------
 gnu/system/linux-initrd.scm   |   10 +++-
 gnu/system/mapped-devices.scm |  130 +++++++++++++++++++++++++++++++++++++++++
 8 files changed, 164 insertions(+), 87 deletions(-)
 create mode 100644 gnu/system/mapped-devices.scm