Announce: Flatpak 1.4.3

[Alexander Larsson]

A new stable flatpak release is available at:
  https://github.com/flatpak/flatpak/releases/tag/1.4.3

$ sha256sum flatpak-1.4.3.tar.xz
279ee6f3b3622943816b949b5cf076df95600aa13a8b45412f8bf68b76ed6e85
flatpak-1.4.3.tar.xz

Changes in 1.4.3
================
 * Fix crash in revokefs.
 * Handle 'versions' extension key (in addition to 'version') when
   checking for local extensions, which was causing us to uninstall
   some actually used extensions with uninstall --unused.
 * The 'required-flatpak' metadata key now supports listing multiple
   versions to support backported features.
 * Fix crash with older versions of polkit.
 * Fix installation of bundles.
 * Fix crash on deploy error.
 * Support building bundles of apps installed from a remote.
 * OCI: Fix handling of locally cached icons.
 * Fix crash when listing unconfigured remotes.
 * Ignore differences in trailing slashes for repo uris.

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 Alexander Larsson                                Red Hat, Inc
       alexl at redhat.com         alexander.larsson at gmail.com