python-hetzner: Update to bugfix version 0.7.2.

From version 0.7.1 this fixes encoding problems with some DELL servers
while running the CLI.

And more importantly in version 0.7.2, it fixes the SSL certificate
error (Hetzner changed CA) which renders the library pretty much
useless.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
(cherry picked from commit 415c31372c9c5544805830d8ec62e559321fb854)
flashplayer-11: update, including security fixes

(cherry picked from commit 0047db47bd989e4928109289f583ee8f3ede1964)
liferea: maintenance update

(cherry picked from commit 4031707138ca272f601e77bedaad2c5ea9b996ad)

Conflicts (one update skipped):
	pkgs/applications/networking/newsreaders/liferea/default.nix