Add .authorspellings file

I'm inclined to replace the CONTRIBUTORS stuff with this. It doesn't do as
much, but it's a lot simpler and support is baked into darcs (`darcs show
authors`).

Thoughts?

.authorspellings

@@ -0,0 +1,53 @@
+Jean-Philippe Bernardy <jeanphilippe.bernardy@gmail.com>, jeanphilippe\.bernardy@
+Don Stewart <dons@cse.unsw.edu.au>, dons
+Nicolas Pouillard <nicolas.pouillard@gmail.com>
+Gwern Branwen <gwern0@gmail.com>, gwern
+Anders Karlsson <andekar@student.chalmers.se>, andersk84
+Jeff Wheeler <wheele11@illinois.edu>, jeffwheeler, jeff\@nokrev\.com
+Corey O'Connor <coreyoconnor@gmail.com>
+Gustav Munkby <grddev@gmail.com>, grddev
+Allan Clark <a.d.clark@ed.ac.uk>
+Deniz Dogan <deniz.a.m.dogan@gmail.com>
+Colin McQuillan <m.niloc@gmail.com>
+Kevin Ballard <kevin@sb.org>
+Tuomo Valkonen <tuomov@iki.fi>
+Steffen Siering <steffen.siering@gmail.com>
+Krasimir Angelov <kr.angelov@gmail.com>
+Krzysztof Goj <krzysztof.goj@gmail.com>
+Thomas Schilling <nominolo@googlemail.com>, nominolo
+Kalman Noel <noel.kalman@googlemail.com>
+James Crayne <lordbrain@riseup.net>
+Robin Green <greenrd@greenrd.org>
+Kevin Quick <kq1quick@gmail.com>
+Jeremy Wall	<jwall@google.com>
+Bastiaan Zapf <Zapf@students.uni-marburg.de>
+Jens Petersen <petersen@haskell.org>
+Wen Pu <dexterpu@gmail.com>
+Stefan O'Rear <stefanor@cox.net>
+Ben Moseley <ben@moseley.name>
+David Waern <david.waern@gmail.com>
+Sasha Rush <sasha.rush@gmail.com>
+Michal J Gajda <mjgajda@gmail.com>
+Jens Petersen <juhp AT haskell.org>, juhp
+Simon Winwood <sjw@cse.unsw.edu.au>, sjw
+Anders Conbere <aconbere@conbere.org>
+Alson Kemp <alson@alsonkemp.com>
+Christopher Rodrigues <cirodrig@crhc.illinois.edu>
+Andrii Zvorygin <andrii.z@gmail.com>
+Daniel McAllansmith <dm.maillists@gmail.com>, dm\.maillists
+Gale Gibbard <cgibbard@gmail.com>
+Stephane Payrard <cognominal@gmail.com>
+Jason Foutz <jfoutz@gmail.com>
+Massimiliano Gubinelli <m.gubinelli@gmail.com>
+Mario Lang <mlang@delysid.org>
+Mark Wotton <mwotton@gmail.com>
+Tim Newsham <newsham@lava.net>
+Scott Williams <scottw@artesiancode.com>
+Shae Erisson <shae@ScannedInAvian.com>
+Sjur G. Karevoll <sjurberengal@gmail.com>
+Michael Maloney <tactics40@gmail.com>
+Harald Korneliussen <vintermann@gmail.com>
+Stanislaw Pitucha <viraptor@gmail.com>
+Vivian McPhail <vivian.mcphail@paradise.net.nz>
+Andrew Birkett <andy@nobugs.org>
+Tristan Allwood <tora@zonetora.co.uk>