tweak .mailmap

Author: SethTisue

.mailmap

@@ -58,9 +58,11 @@ Pavel Pavlov <pavel.e.pavlov@gmail.com>
 Philipp Haller <philipp.haller@typesafe.com>
 Philipp Haller <philipp.haller@typesafe.com> <hallerp@gmail.com>
 Philippe Altherr <paltherr@epfl.ch>
+Philippus Baalman <philippus@gmail.com>
 Raphaël Noir <noir@epfl.ch>
 Roland Kuhn <rk@rkuhn.info>
 Rüdiger Klaehn <rklaehn@gmail.com>
+Scala Steward <me@scala-steward.org>
 Sebastian Hack <shack@epfl.ch>
 Simon Ochsenreither <simon@ochsenreither.de>
 Stepan Koltsov <stepancheg@epfl.ch>