* gnu/home.scm (%base-home-services): New variable.
(<home-environment>)[services]: Change default to ‘%base-home-services’.
* guix/scripts/home/import.scm (manifest+configuration-files->code): Use
‘%base-home-services’ by default.
* tests/home-import.scm (match-home-environment-no-services)
(match-home-environment-transformations)
(match-home-environment-no-services-nor-packages)
(match-home-environment-bash-service)
(match-home-environment-bash-service-with-alias): Adjust accordingly.
* doc/he-config-bare-bones.scm: Use ‘%base-home-services’.
* doc/guix.texi (Declaring the Home Environment): Add index entry for
‘%base-home-services’.
Change-Id: Id95ede62b97a976aad138bfc4b63fc0bdf37c7de