* gnu/packages/linux.scm (linux-libre): Revert to version 3.16.1.

* emacs/guix-list.el (guix-package-list-installed): New face.
  (guix-package-list-get-name): Use it.

* gnu/packages/linux.scm (linux-libre): Update to version 3.16.2.

* gnu/packages/python.scm (python-sphinx, python2-sphinx): New variables.

* gnu/packages/python.scm (python-pygments, python2-pygments): New variables.

* gnu/packages/python.scm (python-docutils, python2-docutils): New variables.

* gnu/packages/python.scm (python-jinja2, python2-jinja2): New variables.

* gnu/packages/python.scm (python-markupsafe, python2-markupsafe): New
  variables.

* gnu/packages/python.scm (python-virtualenv, python2-virtualenv): New
  variables.

* gnu/packages/python.scm (python-itsdangerous, python2-itsdangerous): New
  variables.

* gnu/packages/python.scm (python-oauthlib, python2-oauthlib): New variables.

* gnu/packages/python.scm (python-pyjwt, python2-pyjwt): New variables.

* gnu/packages/python.scm (python-discover, python2-discover): New variables.

* gnu/packages/python.scm (python-coverage, python2-coverage): New variables.

* gnu/packages/python.scm (python-testrepository, python2-testrepository): New
  variables.

* gnu/packages/python.scm (python-fixtures, python2-fixtures): New variables.

* gnu/packages/python.scm (python-subunit, python2-subunit): New variables.

* gnu/packages/python.scm (python-testresources, python2-testresources): New
  variables.

* gnu/packages/python.scm (python-testscenarios, python2-testscenarios): New
  variables.

* gnu/packages/python.scm (python-testtools, python2-testtools): New
  variables.

* gnu/packages/python.scm (python-scriptest, python2-scripttest): New
  variables.

* gnu/packages/python.scm (python-pytest, python2-pytest): New variables.

* gnu/packages/python.scm (python-py, python2-py): New variables.

* gnu/packages/python.scm (python-unittest2, python2-unittest2): New
  variables.

* gnu/packages/python.scm (python-nose, python2-nose): New variables.

* gnu/packages/python.scm (python-extras, python2-extras): New variables.

* gnu/packages/python.scm (python-mimeparse, python2-mimeparse): New
  variables.

* gnu/packages/python.scm (python-unidecode, python2-unidecode): New
  variables.

* gnu/packages/python.scm (python-jsonschema, python2-jsonschema): New
  variables.

* gnu/packages/python.scm (python2-requests): New variable.

* gnu/packages/python.scm (python-certifi, python2-certifi): New variables.

* gnu/packages/python.scm (python-pyld, python2-pyld): New variables.

* gnu/packages/python.scm (python-exif-read, python2-exif-read): New
  variables.

* guix/build/pull.scm (report-build-progress): New procedure.
  (p-for-each): Add #:progress parameter.
  [loop]: Keep track of the number of completed processes.  Tail-call
  PROGRESS at each loop iteration.
  (build-guix): Add #:debug-port parameter.  Use it for verbose
  messages.  Change 'tar' flags to 'xf'.  Around 'compile-file' call,
  bind CURRENT-WARNING-PORT to DEBUG-PORT.
* guix/scripts/pull.scm (unpack): Add #:verbose? parameter.
  [builder]: Pass #:debug-port to 'build-guix'.
  (guix-pull): Leave CURRENT-BUILD-OUTPUT-PORT unchanged.  Pass
  #:verbose? to 'unpack'.

* gnu/build/vm.scm (read-reference-graph, populate-store): Move to...
* guix/build/store-copy.scm: ... here.  New file.
* Makefile.am (MODULES): Add it.
* gnu/system/vm.scm (expression->derivation-in-linux-vm): Adjust default
  #:modules values accordingly.
* tests/gexp.scm ("gexp->derivation, store copy"): New test.

* gnu/system/linux-initrd.scm (expression->initrd)[string->regexp]:
  Remove.
  Use 'flat-linux-module-directory'.  Remove the equivalent logic from
  'builder'.
  (flat-linux-module-directory): New procedure.

Suggested by Alex Kost.

* guix/profiles.scm (right-arrow): Fall back to "->".
* tests/profiles.scm ("manifest-show-transaction"): Adjust accordingly.

* configure.ac (emacsuidir): New variable.
  (AC_CONFIG_FILES): Add 'emacs/guix-init.el', 'emacs/guix-helper.scm'.
* Makefile.am: Include 'emacs.am'.
* emacs.am: New file.
* doc/emacs.texi: New file.
* doc/guix.texi: Include 'emacs.texi'.
* emacs/guix-backend.el: New file.
* emacs/guix-base.el: New file.
* emacs/guix-helper.scm.in: New file.
* emacs/guix-history.el: New file.
* emacs/guix-info.el: New file.
* emacs/guix-init.el.in: New file.
* emacs/guix-list.el: New file.
* emacs/guix-main.scm: New file.
* emacs/guix-utils.el: New file.
* emacs/guix.el: New file.

* gnu/packages/datamash.scm (datamash)[license]: Change to GPL3+.

* gnu/build/linux-initrd.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.
* gnu/system/linux-initrd.scm (expression->initrd): Use (gnu build
  linux-initrd) and 'write-cpio-archive' instead of the inlined code.