Add email mapping

.mailmap

@@ -132,6 +132,7 @@ Mehdi Mirza <memirzamo@gmail.com> memimo <memirzamo@gmail.com>
 Moslem Kazemi <moslemk@gmail.com> Moslem Kazemi <moslemk@users.noreply.github.com>
 Moslem Kazemi <moslemk@gmail.com> Mo <moslemk@gmail.com>
 Nicolas Ballas <ballas.n@gmail.com> Kcub <ballas@lrde.epita.fr>
+Nicolas Ballas <ballas.n@gmail.com> ballasn <ballas.n@gmail.com>
 Nicolas Boulanger-Lewandowski <nicolas_boulanger@hotmail.com> boulanni <nicolas_boulanger@hotmail.com>
 Nicolas Pinto <pinto@alum.mit.edu> Nicolas Pinto <nicolas.pinto@gmail.com>
 Olivier Breuleux <breuleux@gmail.com> Olivier Breuleux <breuleuo@iro.umontreal.ca>
@@ -171,6 +172,7 @@ Sebastian Berg <sebastian@sipsolutions.net> seberg <sebastian@sipsolutions.net>
 Sebastien Jean <jeasebas@iro.umontreal.ca> sebastien <jeasebas@iro.umontreal.ca>
 Sebastien Jean <jeasebas@iro.umontreal.ca> sebastien-j <jeasebas@iro.umontreal.ca>
 Sebastien Jean <jeasebas@iro.umontreal.ca> sebastien-j <sebastien.jean@mail.mcgill.ca>
+Simon Lefrancois <simon.lefrancois@umontreal.ca> slefrancois <simon.lefrancois@umontreal.ca>
 Sina Honari <honaris@iro.umontreal.ca> SinaHonari <sina2222@gmail.com>
 Sina Honari <honaris@iro.umontreal.ca> Sina Honari <honaris@eos21.iro.umontreal.ca>
 Søren Kaae Sønderby <skaaesonderby@gmail.com> skaae <skaaesonderby@gmail.com>