Add mention of Runtime to NOTICE.
diff --git a/NOTICE b/NOTICE
index 64c9336..94bea73 100644
--- a/NOTICE
+++ b/NOTICE
@@ -3,3 +3,6 @@
 
 This product includes software developed at
 The Apache Software Foundation (http://www.apache.org/).
+
+Portions of this software were developed at
+Runtime Inc, copyright 2015.