anchor.diff:  "Clean"
     //==> "InstallDotnetcore"
     ==> "AssemblyInfo"
  -  ==> "CopyFSharpCore"
     ==> "Build"
     ==> "BuildTests"
   
  
positive.code: "Build"
    ==> "DogFoodCommandTool"
    ==> "All"
  
  "CopyFSharpCore" ==> "NuGet"
  
  "All"
    ==> "NuGet"
  
negative.code:     sprintf "[%s,%d.%d)" version v.Major (int v.Minor + 1)
    | Patch -> // Every update breaks
      version |> Fake.DotNet.NuGet.NuGet.RequireExactly
  
  Target.create "NuGet" (fun _ ->
      NuGet.NuGet (fun p ->
  