anchor.diff:  (**
   ## Query the install model
   
  -Paket allows to do queries against the installed NuGet packages.
  +It's possible to do queries against the installed NuGet packages:
   *)
   
   // install some packages
  
positive.code: // [fsi:   ("Microsoft.AspNet.Razor", "2.0.30506.0"); ("NUnit", "2.6.3");]
  // [fsi:   ("RazorEngine", "3.3.0"); ("Zlib.Portable", "1.10.0")]]
  
  
  // list only the direct dependencies
  Dependencies.GetDirectDependencies()
  // [fsi:val it : (string * string) list =]
  
negative.code: (**
  ## Adding and removing NuGet packages
  
  Paket allows to install and uninstall NuGet packages programmatically:
  *)
  
  // install a package
  