Adds Keith Perkins <keith@tasteoftheworld.us> to AUTHORS

AUTHORS

@@ -74,6 +74,7 @@ Juan Ignacio Catalano <catalanojuan@gmail.com>
 Juarez Bochi <jbochi@gmail.com>
 Jude Nagurney <jude@pwan.org>
 Julien Poissonnier <julien@caffeine.lu>
+Keith Perkins <keith@tasteoftheworld.us>
 Kevin Tran <hekevintran@gmail.com>
 Kornelijus Survila <kornholijo@gmail.com>
 Leo Dirac <leo@banyanbranch.com>