Update V8 to r6101 as required by WebKit r74534

Change-Id: I7f84af8dd732f11898fd644b2c2b1538914cb78d
diff --git a/AUTHORS b/AUTHORS
index 3749ceb..ea5b93e 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -11,6 +11,7 @@
 Alexander Botero-Lowry <alexbl@FreeBSD.org>
 Alexandre Vassalotti <avassalotti@gmail.com>
 Andreas Anyuru <andreas.anyuru@gmail.com>
+Bert Belder <bertbelder@gmail.com>
 Burcu Dogan <burcujdogan@gmail.com>
 Craig Schlenter <craig.schlenter@gmail.com>
 Daniel Andersson <kodandersson@gmail.com>