Merge branch 'master' into core-updates

doc/guix.texi

gnu/local.mk

gnu/packages/admin.scm

gnu/packages/benchmark.scm

gnu/packages/chez.scm

gnu/packages/curl.scm

gnu/packages/django.scm

gnu/packages/dns.scm

gnu/packages/emacs.scm

gnu/packages/embedded.scm

gnu/packages/engineering.scm

gnu/packages/game-development.scm

gnu/packages/haskell.scm

gnu/packages/imagemagick.scm

gnu/packages/linux.scm

gnu/packages/package-management.scm

gnu/packages/patches/python-django-fix-testcase.patch

gnu/packages/perl.scm

gnu/packages/regex.scm

gnu/packages/search.scm