anchor.diff:  
   Target "NuGet" (fun _ ->
       RestorePackages()
  -    CopyDir "src/packages" "packages" (fun _ -> true)
  +    CopyDir srcPackagesDir packagesDir (fun _ -> true)
       CleanDirs [packagesDir]
   )
   
  
positive.code:             AccessKey = environVarOrDefault "nugetkey" ""
  
              Dependencies = 
                  ["NLog", GetPackageVersion packagesDir "NLog"
                   "Rx-Main", GetPackageVersion packagesDir "Rx-Main"]
  
              Publish = ShouldPublish }) "RailNet.Clients.Ecos.nuspec"        
  )
  
negative.code: let packageDir = @"./package/"
  let sampleDir = @"./sample/"
  let packagesDir = @"./packages/"
  let srcPackagesDir = @"./src/packages/"
  
  let projectName = "RailNet.Clients.EcoS"
  let projectDescription = "An async-based ECoS model railway client for .NET"
  