A+C: add Christopher Nielsen (individual CLA)

R=golang-dev, r2
CC=golang-dev
https://golang.org/cl/3989061
diff --git a/AUTHORS b/AUTHORS
index e0b5e19..26e93d8 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -30,6 +30,7 @@
 Chris Jones <chris@cjones.org>
 Chris Lennert <calennert@gmail.com>
 Christian Himpel <chressie@googlemail.com>
+Christopher Nielsen <m4dh4tt3r@gmail.com>
 Christopher Wedgwood <cw@f00f.org>
 Clement Skau <clementskau@gmail.com>
 Conrad Meyer <cemeyer@cs.washington.edu>