Making sure that the build uses the latest nuget.exe

.nuget/NuGet.targets

@@ -129,7 +129,7 @@
 
                     Log.LogMessage("Downloading latest version of NuGet.exe...");
                     WebClient webClient = new WebClient();
-                    webClient.DownloadFile("https://www.nuget.org/nuget.exe", OutputFilename);
+                    webClient.DownloadFile("https://dist.nuget.org/win-x86-commandline/latest/nuget.exe", OutputFilename);
 
                     return true;
                 }