Update CHANGES and bump version

Signed-off-by: Syrone Wong <wong.syrone@gmail.com>

CHANGES

@@ -1,3 +1,8 @@
+3.4.3 2017-1-11
+- Make the previous portable mode as default
+- Refine networking by Noisyfox
+- Bug fixes and improvements
+
 3.4.2.1 2016-12-30
 - Refine Traditional Chinese translation by LNDDYL
 - sysproxy: reduce false positives on virus detection

shadowsocks-csharp/Controller/Service/UpdateChecker.cs

@@ -24,7 +24,7 @@ namespace Shadowsocks.Controller
         public string LatestVersionLocalName;
         public event EventHandler CheckUpdateCompleted;
 
-        public const string Version = "3.4.2.1";
+        public const string Version = "3.4.3";
 
         private class CheckUpdateTimer : System.Timers.Timer
         {