Merge pull request Azure#1169 from dscsolutions/version-update

Update the default extension handler version to 2.*

Author: stankovski

src/ServiceManagement/Compute/Commands.ServiceManagement/IaaS/Extensions/DSC/DscExtensionCmdletCommonBase.cs

@@ -15,20 +15,17 @@
 using System;
 using System.Globalization;
 using System.Management.Automation;
-using Microsoft.Azure.Common.Authentication;
-using Microsoft.Azure.Common.Authentication.Models;
 using Microsoft.WindowsAzure.Commands.Common.Storage;
 using Microsoft.WindowsAzure.Commands.ServiceManagement.Properties;
 using Microsoft.WindowsAzure.Commands.Utilities.Common;
 using Microsoft.WindowsAzure.Storage.Auth;
-using Microsoft.WindowsAzure.Management.Storage;
 
 namespace Microsoft.WindowsAzure.Commands.ServiceManagement.IaaS.Extensions.DSC
 {
     public static class DscExtensionCmdletCommonBase
     {
         internal const string VirtualMachineDscExtensionCmdletNoun = "AzureVMDscExtension";
-        internal static readonly string DefaultExtensionVersion = "1.*";
+        internal static readonly string DefaultExtensionVersion = "2.*";
 
         /// <summary>
         /// Attempts to get the user's credentials from the given Storage Context or the current subscription, if the former is null.