* New upstream release.
* debian/patches:
  - 01_port-to-thunarx-2 and 02_port-to-exo-1,
    03_fix-crash-with-ogg-video-files and 04_fix-implicit-dso-linkin
    dropped, included upstream.
* debian/rules:
  - drop xdt-autogen rules, not needed anymore.
  - use dh9 and dpkg-dev 1.16.1 hardening rules.
  - switch to multiarch paths.
* debian/compat bumped to 9 for hardening support.
* debian/control:
  - update debhelper build-dep for hardening support
  - add dpkg-dev build-dep for hardening support
  - drop build-deps for autoreconf.