gnu: Add tremc.

* gnu/packages/bittorrent.scm (tremc): New variable.

doc: Clarify "Installing GuixSD in a VM".

* doc/guix.texi (Installing GuixSD in a VM): Mention decompressing the
installation image.

gnu: ldc: Add missing patches.

This is a followup to commit 2429dde57d8461cc8e51dbe6c9d47d795fe6fc9a.

* gnu/packages/patches/ldc-1.1.0-disable-dmd-tests.patch,
gnu/packages/patches/ldc-1.1.0-disable-phobos-tests.patch: New files.

doc: Fix networking instructions in "Installing GuixSD in a VM".

This is a followup to commit c8b543741f422ecf41e7635c6a1c40b3bd55947a.

* doc/guix.texi (Installing GuixSD in a VM): Fix typo.

gnu: assword: Wrap with the GObject typelib of GTK+.

Fixes <https://debbugs.gnu.org/25457>.

* gnu/packages/password-utils.scm (assword)[inputs]: Add 'gtk+'.
[arguments]: Add 'wrap-assword' phase.

gnu: python-xdo: Hardcode the path of 'libxdo.so'.

* gnu/packages/python.scm (python-xdo)[arguments]: Add 'patch-libxdo-path'
phase.

gnu: python-xdo: Add 'python-six' to 'propagated-inputs'.

* gnu/packages/python.scm (python-xdo)[propagated-inputs]: New field.

gnu: gtksourceview-2: Adjust inputs.

Fixes <https://debbugs.gnu.org/25537>.

* gnu/packages/gtk.scm (gtksourceview-2): Move 'shared-mime-info' and
'xorg-server' to 'native-inputs'.  Move 'gtk+-2' to 'propagated-inputs'.

gnu: Add ldc@1.1.0-beta6.

* gnu/packages/ldc.scm (ldc-1.1.0-beta6, ldc-beta): New variables.
* gnu/packages/patches/ldc-1.1.0-disable-dmd-tests.patch: New file.
* gnu/packages/patches/ldc-1.1.0-disable-phobos-tests.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add them.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

tests: Adjust pypi test to recent importer change.

This is a followup to 2f977d92d3ae517788d3dee98f63680ca149aa1a.

* tests/pypi.scm ("pypi->guix-package"): Don't expect 'python-setuptools' in
'propagated-inputs'.
("pypi->guix-package, wheels"): Likewise.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

doc: Add missing Upstart command for the binary installation.

Fixes <http://bugs.gnu.org/25551>.
Reported by Jason Self <jason@bluehome.net>.

* doc/guix.texi (Binary Installation): Add 'initctl
reload-configuration' command for Upstart.

doc: Add 'cups-configuration' example with 'hplip'.

* doc/guix.texi (Printing Services): Add example with 'hplip'.

packages: Add 'package-upstream-name' and use it.

* guix/packages.scm (package-upstream-name): New procedure.
* guix/gnu-maintenance.scm (gnu-package?, ftp-server/directory)
(latest-release*, latest-gnome-release)
(latest-kde-release): Use it instead of the inline expression.

import: github: Better tolerate unexpected file extensions.

* guix/import/github.scm (find-extension): Add ".tbz".
(updated-github-url): When 'find-extension' returns #f, use "" for EXT.

gnu-maintenance: 'gnu-package?' ignores invalid URLs.

* guix/gnu-maintenance.scm (gnu-package?)[gnu-home-page?]: Add '>>'
threading macro and use it.

gnu: emacs-emms: Add 'upstream-name' property.

* gnu/packages/emacs.scm (emms)[properties]: New field.

gnu-maintenance: GNU updater handles gnu.org-hosted Emacs packages.

* guix/gnu-maintenance.scm (pure-gnu-package?): If an "emacs-" package
matches 'gnu-hosted?', return true.
(gnu-hosted?): New procedure.

gnu-maintenance: Honor 'upstream-name' property in GNU updater.

* guix/gnu-maintenance.scm (gnu-package?): Honor the 'usptream-name'
property of PACKAGE.
(ftp-server/directory): Likewise.

gnu: offlineimap: Update to 7.0.13.

* gnu/packages/mail.scm (offlineimap): Update to 7.0.13.

gnu: btrfs-progs: Update to 4.9.1.

* gnu/packages/linux.scm (btrfs-progs): Update to 4.9.1.