Modified some error messages in Ext.cs and WebSocketServer.cs
Refactored HttpRequestEventArgs.cs
Modified a few in WebSocketServiceHost.cs
Fix for pull request #73, it's because 'The TcpListener.Stop method also closes the underlying Socket, and creates a new Socket for the TcpListener. If you set any properties on the underlying Socket prior to calling the Stop method, those properties will not carry over to the new Socket.'