title: VSLauncher starts wrong version
body: <p>I have 3 versions of Visual Studio installed, and 3 projects that require a specific version. VSLauncher USED to look at the SLN or VCPROJ file and open the correct version of Visual Studio. Now it only starts the most recent version, regardless of the project. </p>
  
  <p>Note that this has nothing to do with the commonly reported problem with beta versions of VS. none of the SLNs have ever been touched by a beta VS. </p>