branch master updated (0d0bcaa -> 779aa00)

[Ludovic Courtès]

civodul pushed a change to branch master
in repository guix.

      from  0d0bcaa   gnu: macs: Update to 2.1.0.20151222.
       new  98a7b52   store: Add monadic access to '%current-system'.
       new  e5f04c2   profiles: Add #:system argument to profile-derivation.
       new  779aa00   scripts: environment: Build environments as profiles.

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:
 doc/guix.texi                       |    7 +
 guix/profiles.scm                   |   10 +-
 guix/scripts/environment.scm        |  239 +++++++++++++++++++----------------
 guix/store.scm                      |   16 +++-
 tests/guix-environment-container.sh |    2 +-
 tests/guix-environment.sh           |  104 ++++++++++------
 tests/store.scm                     |   11 ++-
 7 files changed, 238 insertions(+), 151 deletions(-)