branch master updated (3c9a718 -> ece6864)

[Ludovic Courtès]

civodul pushed a change to branch master
in repository guix.

      from  3c9a718   gnu: linux-libre: Update to 4.5.5.
       new  3cabdea   graph: Use absolute file name canonicalization.
       new  97507eb   derivations: 'derivation' sorts items in the resulting 
object.
       new  a773c31   graph: Allow store file names for 'derivation' and 
'references' graphs.
       new  30d4bc0   substitute: Gracefully handle invalid store file names.
       new  cf8b312   grafts: Preserve empty directories when grafting.
       new  ece6864   grafts: Rename files whose name matches a graft.

The 6 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               |   14 +++++
 guix/build/graft.scm        |   28 ++++++++-
 guix/derivations.scm        |  133 ++++++++++++++++++++++---------------------
 guix/graph.scm              |    2 +-
 guix/scripts/graph.scm      |   82 +++++++++++++++++++-------
 guix/scripts/substitute.scm |   12 +++-
 tests/derivations.scm       |   27 +++++++++
 tests/grafts.scm            |   41 +++++++++++++
 tests/guix-graph.sh         |   18 +++++-
 9 files changed, 265 insertions(+), 92 deletions(-)