CONTRIBUTORS: Update

.mailmap

 Richard Hartmann <richih@debian.org> <richih+github.com@richih.org>
 Richard Hartmann <richih@debian.org> <richih.mailinglist@gmail.com>
+Richard Hartmann <richih@debian.org> <RichiH@users.noreply.github.com>
 Alexander Skurikhin <a.skurihin@gmail.com> <a.skurihin@gmail.com>

CONTRIBUTORS

 Alphabetical list of everyone who ever committed to this repository
 
+Eric Bouchut <ebouchut@gmail.com>
+Dridi Boukelmoune <dridi.boukelmoune@gmail.com>
 Vincent Demeester <vincent@demeester.fr>
 Thomas Ferris Nicolaisen <tfnico@gmail.com>
 martin f. krafft <madduck@madduck.net>
 Alessandro Ghedini <alessandro@ghedini.me>
 Valentin Haenel <valentin.haenel@gmx.de>
 Richard Hartmann <richih@debian.org>
+Gregor Jasny <gjasny@googlemail.com>
 mek-apelsin <mek@pels.in>
+Evan Pitstick <nerdx00@gmail.com>
 Dieter Plaetinck <dieter@plaetinck.be>
 Corey Quinn <corey@sequestered.net>
 Gernot Schulz <post@gernot-schulz.com>