ruby, js and c# changes

CHANGES.txt

diff --git a/CHANGES.txt b/CHANGES.txt
index 2673d31..d083743 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -9,10 +9,14 @@
   * CocoaDocs support
 
   Ruby
-  *
+  * Fixed memory corruption bug in parsing that could occur under GC pressure.
 
   Javascript
-  *
+  * jspb.Map is now properly exported to CommonJS modules.
+
+  C#
+  * Removed legacy_enum_values flag.
+
 
 2016-07-27 version 3.0.0 (C++/Java/Python/Ruby/Objective-C/C#/JavaScript/Lite)
   General