Build: Update authors list

scottgonzalez · scottgonzalez · commit 57bff499deb8 · 2016-09-07T10:11:36.000-04:00
diff --git a/AUTHORS.txt b/AUTHORS.txt
@@ -328,3 +328,5 @@ Amanpreet Singh <apsdehal@gmail.com>
 Alexey Balchunas <bleshik@gmail.com>
 Peter Kehl <peter.kehl@gmail.com>
 Peter Dave Hello <hsu@peterdavehello.org>
+Johannes Schäfer <johnschaefer@gmx.de>
+Ville Skyttä <ville.skytta@iki.fi>
