Update version to 104.4

This includes a feature that allows specifying whether or not to use default authentication.

Author: haacked

RestSharp/SharedAssemblyInfo.cs

@@ -30,5 +30,5 @@
 
 class SharedAssembylInfo
 {
-    public const string Version = "104.3.3";
+    public const string Version = "104.4.0";
 }