Updating package feed urls

tools/WebStack.NuGet.targets

@@ -27,11 +27,11 @@
         <PackagesConfig>$([System.IO.Path]::Combine($(ProjectDir), "packages.config"))</PackagesConfig>
         <PackagesDir>$([System.IO.Path]::Combine($(SolutionDir), "packages"))</PackagesDir>
         <PackageOutputDir Condition="'$(PackageOutputDir)' == ''">$(TargetDir.Trim('\\'))</PackageOutputDir>
-        <PreReleasePackagesUrl Condition="'$(PreReleasePackagesUrl)' == ''">http://www.myget.org/F/f05dce941ae4485090b04586209c8b08/</PreReleasePackagesUrl>
+        <PreReleasePackagesUrl Condition="'$(PreReleasePackagesUrl)' == ''">https://www.myget.org/F/f05dce941ae4485090b04586209c8b08/</PreReleasePackagesUrl>
         <CompactMessage Condition=" '$(CompactMessage)' == '' ">true</CompactMessage>
 
         <!-- Package sources used to restore packages. By default will used the registered sources under %APPDATA%\NuGet\NuGet.Config -->
-        <PackageSources>"https://go.microsoft.com/fwlink/?LinkID=230477;$(PreReleasePackagesUrl)"</PackageSources>
+        <PackageSources>"https://nuget.org/api/v2/;$(PreReleasePackagesUrl)"</PackageSources>
 
         <!-- Enable the restore command to run before builds -->
         <RestorePackages Condition="$(RestorePackages) == ''">false</RestorePackages>