branch master updated (a2d469a -> 4a1fc56)

[Ludovic Courtès]

civodul pushed a change to branch master
in repository guix.

      from  a2d469a   gnu: giac-xcas: Update to 1.2.2-75.
       new  2c2ec26   services: shepherd: Clarify error message about missing 
service.
       new  7215390   Add (guix zlib).
       new  4a1fc56   publish: Add '--compression'.

The 3 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:
 .dir-locals.el            |    2 +
 Makefile.am               |    2 +
 configure.ac              |   11 +++
 doc/guix.texi             |   12 +++
 gnu/services/shepherd.scm |    2 +-
 guix/config.scm.in        |    6 +-
 guix/scripts/publish.scm  |  163 ++++++++++++++++++++++++++-----
 guix/zlib.scm             |  234 +++++++++++++++++++++++++++++++++++++++++++++
 m4/guix.m4                |   11 +++
 tests/publish.scm         |   59 ++++++++++--
 tests/zlib.scm            |   63 ++++++++++++
 11 files changed, 532 insertions(+), 33 deletions(-)
 create mode 100644 guix/zlib.scm
 create mode 100644 tests/zlib.scm