anchor.diff:  // Variables
   let configuration = "Release"
   let solution = "./src/Akka.sln"
  -let versionSuffix = getBuildParamOrDefault "versionsuffix" ""
  +let versionSuffix = 
  +    match (getBuildParamOrDefault "nugetprerelease" "") with
  +    | "dev" -> "beta"
  +    | _ -> ""
   
   // Directories
   let toolsDir = __SOURCE_DIRECTORY__ @@ "tools"
  
positive.code:     let source = getBuildParamOrDefault "nugetpublishurl" ""
      let symbolSource = getBuildParamOrDefault "symbolspublishurl" ""
  
      let runSingleProject project =
          DotNetCli.RunCommand
              (fun p -> 
                  { p with 
                      TimeOut = TimeSpan.FromMinutes 10. })
              (sprintf "nuget push %s --api-key %s --source %s --symbol-source %s" project apiKey source symbolSource)
  
      projects |> Seq.iter (runSingleProject)
  )
  
  //--------------------------------------------------------------------------------
  
negative.code: 
  // nuget dependencies
  "Clean" ==> "RestorePackages" ==> "Build" ==> "CreateNuget"
  "CreateNuget" ==> "PublishNuget" ==> "Nuget"
  
  // docs
  "Clean" ==> "Docfx"
  