anchor.diff:  
   Target "Watch" <| fun _ ->
       use watcher =
  -        !!"*.fs"
  +        !!"./**/*.fs"
           --"AssemblyInfo.fs"
           |> WatchChanges (fun changes ->
               tracefn "%A" changes
  
positive.code:          Attribute.FileVersion version]
  
  Target "Compile" <| fun _ ->
      !!"*.fs"
      |> List.ofSeq
      |> Fsc (fun p ->
              { p with
                  Output = exeName
  
negative.code: "AssemblyInfo"
  ==> "Compile"
  ==> "Run"
  ==> "Watch"
  
  RunTargetOrDefault "Help"
  