Document fix for issues #1942 and #1944.

Renci.SshClient/Build/nuget/SSH.NET.nuspec

@@ -17,12 +17,13 @@ New Features:
 
     * Improved accuracy of IsConnected on .NET
     * Added support for ssh.com (SSH-2) private keys (issue #1987)
-    * Support an acceptable group of up to 8192 bits for SHA-1 and SHA-256 Diffie-Hellman Group and Key Exchange (issue #1973 and #1777)
+    * Support an acceptable group of up to 8192 bits for SHA-1 and SHA-256 Diffie-Hellman Group and Key Exchange (issues #1973 and #1777)
 
 Fixes:
 
     * Client channels are no longer closed on dispose (issue #1943)
     * SftpClient.Exists(string) returns true for a path that does not exist (issues #1952, #1696 and #1574)
+    * ObjectDisposedException when channel is closing (issues #1942 and #1944)
 
 2014.4.6-beta1
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