title: Tortoise SVN reports files as "missing" or "deleted" although they are present on disk
body: <p>When I open the commit dialog in tortoise svn, I can see that a lot of files are either <em>missing</em> or <em>deleted</em>, but I have them on disk.</p>
  
  <p>What is the difference between missing and deleted?</p>
  
  <p>How are they either missing or deleted if I have them?</p>
  
  <p>(svn status does not report those files)</p>