title: Is there an alternative to contentFiles with projects that use packages.config?
body: <p>I have a nuget package with content that I want to be copied to the build output when users install my package. There is support for this: <a href="http://blog.nuget.org/20160126/nuget-contentFiles-demystified.html" rel="nofollow" title="Nuget ContentFiles Demystified">NuGet ContentFiles Demystified</a> in NuGet v3.3. However, it only works in projects that use <code>project.json</code>.  The contentFiles are not copied to my build output when I have a project that uses <code>packages.config</code>.</p>
  
  <p>Is there an alternative or workaround I could use in order to make my NuGet package work on projects that use either a <code>project.json</code> or <code>packages.config</code>?</p>