Merge branch 'version-1.0.0'

Makefile.am

NEWS

config-daemon.ac

doc/guix.texi

etc/guix-install.sh

etc/substitutes/ci.guix.gnu.org.pub

gnu/packages/gnome.scm

gnu/packages/libusb.scm

gnu/packages/package-management.scm

gnu/services/desktop.scm

gnu/system/examples/vm-image.tmpl

gnu/system/vm.scm

guix/scripts/build.scm

guix/scripts/processes.scm

guix/scripts/substitute.scm

guix/self.scm

guix/store.scm

po/doc/guix-manual.de.po

po/doc/guix-manual.es.po

po/doc/guix-manual.fr.po