User= specification is only needed for system services, this runs on the
session bus.

Fixes: #301

* [harbour-storeman.spec] Post release version increase

* [harbour-storeman.changes] Add stub for v0.3.9

`User=` specification is only needed for "system" (i.e. system-wide)
message buses, but this runs on a "session" (i.e.
per-user-login-session) bus.

Fixes: #301

References: 
- [D-Bus
Specification](https://dbus.freedesktop.org/doc/dbus-specification.html#id-1.13.5.11.5)
- Man-page for `dbus-daemon`, [section "configuration
file"](https://dbus.freedesktop.org/doc/dbus-daemon.1.html#configuration_file)
and examples in [section "integrating session
services"](https://dbus.freedesktop.org/doc/dbus-daemon.1.html#session_services)

* remove user specification from dbus service file
  User= specification is only needed for system services, this runs on the
session bus.
  Fixes: #301

* Post release version increase to 0.3.9 (#472)

* [harbour-storeman.spec] Post release version increase

* [harbour-storeman.changes] Add stub for v0.3.9

* [harbour-storeman.changes] Update for releasing v0.3.9

---------

Co-authored-by: nephros <nemo@pgxperiiia10>

* [README.md] Add Peter G. (nephros) to contributors

* [LICENSE] Add Peter G. (nephros) to contributors

* [DevelopersModel.qml] Add Peter G. (nephros) to contributors

* [README.md] Add Peter G. (nephros) to contributors

* [LICENSE] Add Peter G. (nephros) to contributors

* [DevelopersModel.qml] Add Peter G. (nephros) to contributors

… and denote that translators are not listed here, but within Storeman.

… its order, … (#480)

… and denote that translators are not listed here, but [within
Storeman](https://github.com/storeman-developers/harbour-storeman/blob/master/qml/models/TranslatorsModel.qml).

…ag …

… for v0.3.9 in order to perform some testing.

…`sfos3.1` …

… to reflect reality and avoid confusion: See PR #454.

* [harbour-storeman.changes] Update for postponing to set the release tag for v0.3.9 in order to perform some additional testing.

* [harbour-storeman.spec] Fix comment: Branch `sfos3.2` was renamed to `sfos3.1` to reflect reality and avoid confusion; see PR #454.