title: Visual Studio 2017 UI ignores CSPROJ <PackageVersion>
body: <p>I have a simple .NetCoreApp 1.1 Class Library, currently open in Visual Studio 2017 15.2 (26430.13).
  I'd like to create a NuGet package on build, and have configured the "Package" tab of my project settings; including the "Generate NuGet package on build".
  On that tab I set the "<strong>Package id</strong>" and "<strong>Package version</strong>".
  I see the <strong>Package id</strong> stored in the CSPROJ<code>&lt;PackageId&gt;</code> element.
  However, I do not see the Package version being stored in the <code>&lt;PackageVersion&gt;</code> element. 
  The NuGet package gets built using the CSPROJ<code>&lt;PackageVersion&gt;</code> value; and the different value shown in the project properties "Package" tab is stored in some magical location I cannot find.</p>
  
  <p>Is this a bug?</p>
  
  <p>-John</p>