This increases the debhelper minimum version to 9.20160709, but we had already
removed dh_systemd so the change is largely cosmetic. But it allows us to bump
the version to keep in step with Debian.

This ensures logind sessions are closed immediately so we always get a session
on fast logout/login cycles (Closes: #540).

Recommended by https://lintian.debian.org/tags/maintainer-script-should-not-use-update-alternatives-remove.html

This reverts commit 11ca1951b6.

It seems that sometimes /etc/X11/Xsession isn't executable. See unresolved
Debian #792859.

Suites/experimental

See merge request devuan-packages/slim!7

Bump version so upgrades work

See merge request devuan-packages/slim!5

/etc/X11/Xsession is an executable script.

The Debian NMU 1.3.6-5.1 is noop for Devuan as it contained only slim.service
fixes. However this version is in beowulf.

Devuan ascii has 1.3.6-5.1+devuan2 and ceres slim-1.3.6-5+devuan5

This version bump allows all these to be upgraded.

Merge LeePen/slim:wip/devuan

See merge request devuan-packages/slim!4

This is to work around a bug caused by changes to the default
compression level used in the unstable & beowulf suites changing from 9
to 6

* add missing line continuation

* themes to be provided by desktop-base packages
  and others using the dpkg alternatives system

* set slim to use slim-desktop-theme (alternatives system)
* refresh quilt patches to get rid of warnings

Add devuan-curve theme to SLiM

This adds a _leafy_ green theme for Devuan.

Is there a need to update `slim.conf` to set `current_theme` to that theme instead of the default?

See merge request !1