branch master updated (b027d91 -> f304c9c)

[Ludovic Courtès]

civodul pushed a change to branch master
in repository guix.

      from  b027d91   gnu: Add libdvdnav.
       new  da74bc7   Add Ricardo to 'AUTHORS'.
       new  f304c9c   derivations: Raise an error for references to 
non-existent outputs.

The 2 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:
 AUTHORS              |    1 +
 guix/derivations.scm |   33 ++++++++++++++++++++++++++++++---
 guix/ui.scm          |    9 ++++++---
 tests/packages.scm   |   11 +++++++++++
 4 files changed, 48 insertions(+), 6 deletions(-)