Add Kiall Mac Innes to the list of contributors.

Thanks Kiall for the Debian package files!
diff --git a/AUTHORS b/AUTHORS
index 449c69e..a613b4a 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -13,5 +13,6 @@
 - Joseph A. Levin
 - Jannis Leidel
 - Konstantin Tjuterev
+- Kiall Mac Innes
 
 Portions derived from other open source works are clearly marked.