title: Missing XML files in bin folder when publishing in Visual Studio
body: <p>I've freshly checked out a .NET 4.5.2 MVC project from github. I can build and run it locally. However, publishing fails when a bunch of XML can't be found in the <code>bin</code> folder which Visual Studio tries to copy to <code>obj\Release\Package\PackageTmp\bin</code>. The error message includes <code>Could not find file bin\Microsoft.Owin.Security.Cookies.xml</code>. These files are marked with a yellow warning sign in the solution explorer, and manually doing right click->exclude from project solves the issue. However, on the next git sync, they are included again. They all have the name of a library, e.g. there will be <code>Newtonsoft.Json.dll</code> in the <code>bin</code> folder and Visual Studio is missing <code>Newtonsoft.Json.xml</code>. 
  Are they usually automatically created? Should they somehow be excluded from deployment?</p>