title: How to enforce same nuget package version across multiple c# projects?
body: <p>I have a bunch of small C# projects which use a couple of NuGet packages. I'd like to be able to update version of a given package automatically. More then that: I'd like to be warned if a project uses different version from the others.</p>
  
  <p>How do I enforce same version dependency across multiple C# projects?</p>