/// <summary>Gets the configuration file associated with a project.</summary>
/// <param name="source">The source value.</param>
/// <returns>The project's configuration file, if any.</returns>
public static EnvDTE.ProjectItem GetConfigurationFileItem(this EnvDTE.Project source)
{
return(source.FindItem("web.config", false) ?? source.FindItem("app.config", false));
}