Remove usage of changectx
The method has been removed in changeset 836867586b83 of Mercurial.
mercurial-server is by Paul Crowley <paul@lshift.net>
Thanks to:
Thomas Arendsen Hein <thomas@intevation.de>
Mathieu PASQUET <kiorky@cryptelium.net>
Vadim Gelfer <vadim.gelfer@gmail.com>
Hubert Plociniczak <hubert@lshift.net>
Christoph Junghans <kleiner_otti@gmx.de>
Steve Kemp <steve@steve.org.uk>
Cédric Boutillier <cedric.boutillier@gmail.com>
Justin B Rye <jbr@edlug.org.uk>
Wolfgang Karall <office@karall-edv.at>
Helge Kreutzmann <debian@helgefjell.de>
"Hideki Yamane \(Debian-JP\)" <henrich@debian.or.jp>
Michal Simunek <michal.simunek@gmail.com>
Martin Bagge <brother@bsnet.se>
Vincenzo Campanella <vinz65@gmail.com>
Ji ZhengYu <zhengyuji@gmail.com>
Waldemar Augustyn <waldemar@astyn.com>
Steven King <kingrst@gmail.com>
Christian Perrier <bubulle@debian.org>
Andrej Krpic <akrpic77@gmail.com>
Joe Dalton <joedalton2@yahoo.dk>
Jeroen Schot <schot@A-Eskwadraat.nl>
Slavko <slavko@slavino.sk>
Michał Kułach <michalkulach@gmail.com>
Tom Parker <palfrey@lshift.net>
Hugh Fisher <hugh.fisher@anu.edu.au>
This credits file may be incomplete - please remind me about people I
should add!