Release v2.0.0

Change-Id: Ice785cf0532fbb031c6f1f1424df4cec4b4716f0
diff --git a/VERSION b/VERSION
index 3f6d5ce..227cea2 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-6.0.0.dev0
+2.0.0