Updating Newtonsoft.Json to 6.0.6

We use Json.NET to parse `project.json` for ASP.NET 5 projects. They use Json.NET 6 and the main issue is that they include single-line comments in the json files which is not supported in 5.x
Maybe the technique in this post can help? http://blog.maartenballiauw.be/post/2014/11/27/Could-not-load-file-or-assembly-NuGet-Assembly-Redirects.aspx