Automatically fix permissions of transactions.db
aptcc: Use Python3 for g-d-upgrade helper
zypp: Fix from hpj@suse.com - Don't prompt to install already installed packages.
Fix crash when a plugin is using the backend in it's initialization stage

The plugin initialization was run before the backend instance was
created, causing all plugins using the backend during initialization to
segfault.
This patch calls the plugin initialization explicitly after the backend
has been set up.
hif: Allow untrused packages to be installed again

Now we're using HifContext rather than creating the HifTransaction each time we
have to un-set the only-trusted flag manually.
Release version 0.9.3
gstreamer-plugin: Plug a small leak
hif: Fix up a signature mismatch with a libhif signal handler

https://bugs.freedesktop.org/show_bug.cgi?id=80689
hif: Include both available and installed packages in NEWEST filter

If we have a sack of:

INSTALLED myawesomepackage-1.0
AVAILABLE myawesomepackage-1.0
AVAILABLE myawesomepackage-1.1
AVAILABLE myawesomepackage-1.2

... include latest packages in the INSTALLED state and latest packages
in the AVAILABLE state in the NEWEST filter results, so that we return:

INSTALLED myawesomepackage-1.0
AVAILABLE myawesomepackage-1.2

This matches the previous yum backend behaviour and simplifies code on
the gnome-software side.

https://bugzilla.redhat.com/show_bug.cgi?id=1113935
trivial: post release version bump
trivial: Sync the spec file with Fedora downstream
Automatically switch to hif backend when the config file says hawkey
hif: Use new hawkey API for getting advisory details

Minor edits and fixes by Kalev Lember <kalevlember@gmail.com>.
Release version 0.9.4
trivial: post release version bump
Make browser-plugin search for npapi-sdk or mozilla-plugin
trivial: Fix build-issue introduced with 273c648
Simplify npapi-sdk code introduced with 273c648

Drop versioned dependency on mozilla-plugin, which fixes this issue just
as well as the complex solution chosen before.
The npapi-sdk provides a fallback on the mozilla-plugin name, which just
has a lower version number (so dropping it fixes this).