Merge branch 'master' into core-updates

Conflicts:
	gnu-system.am

gnu: bigloo: Upgrade to 4.1a.

* gnu/packages/scheme.scm (bigloo): Upgrade to 4.1a.

gnu: bigloo: Update to 4.0b.

* gnu/packages/scheme.scm (bigloo): Update to 4.0b.  Patch the
  `configure-gc' scripts.  Remove `patch-absolute-file-names' phase.
* gnu/packages/patches/bigloo-gc-shebangs.patch: Adjust to new version.

distro: Change the module name space to (gnu ...).

* distro: Rename to...
* gnu: ... this.  Update module names accordingly.
* Makefile.am: Adjust accordingly.
* po/POTFILES.in: Likewise.
* distro.scm: Search for files under /gnu/packages instead of
  /distro/packages.
* gnu/packages/base.scm (ld-wrapper-boot3): Likewise.

distro: Add patches forgotten in previous commits.

* distro/packages/patches/bigloo-gc-shebangs.patch,
  distro/packages/patches/emacs-configure-sh.patch,
  distro/packages/patches/procps-make-3.82.patch: New files.
* Makefile.am (dist_patch_DATA): Add them.