Update AUTHORS.

AUTHORS

@@ -3,7 +3,7 @@ zathura is written by:
 Moritz Lipp <mlq@pwmt.org>
 Sebastian Ramacher <s.ramacher@gmx.at>
 
-Other contributors are (in alphabetical order):
+Other contributors are (in no particular order):
 
 Aepelzen <abietz@gmx.de>
 Pavel Borzenkov <pavel.borzenkov@gmail.com>
@@ -14,3 +14,5 @@ Felix Herrmann <felix@herrmann-koenigsberg.de>
 int3 <jezreel@gmail.com>
 karottenreibe <k@rottenrei.be>
 Johannes Meng <j@jmeng.de>
+J. Commelin <jcommeli@math.leidenuniv.nl>
+Julian Orth <ju.orth@googlemail.com>