title: Can you mark XUnit tests as Explicit?
body: <p>I'm making the transition from NUnit to XUnit (in C#), and I was writing some "Integrated Tests" (ITs) that I don't necessarily want the test runner to run as part of my automated build process. I typically do this for manually testing, when the full end to end process might not work because of environmental factors (missing data, etc.)</p>
  
  <p>In NUnit, you could mark a test with the <a href="http://www.nunit.org/index.php?p=explicit&amp;r=2.4.8" rel="noreferrer">Explicit attribute</a> and it would just get skipped by the test runner (unless you marked the test with a specific <a href="http://www.nunit.org/index.php?p=category&amp;r=2.4.8" rel="noreferrer">Category attribute</a> and told the test runner to target that category explicitly). </p>
  
  <p>Does XUnit have a similar way to exclude tests from the test runner?</p>