Added Reza Lotun to AUTHORS

AUTHORS

@@ -23,3 +23,4 @@ Ordered by date of first contribution:
   Mark Stover <stovenator@gmail.com>
   Andrew Watts <andrewwatts@gmail.com>
   Felix Berger <bflat1@gmx.net
+  Reza Lotun <rlotun@gmail.com>