title: Convert SVN External to Normal Directory
body: <p>This seems like a it would be pretty simple to do but I have not had any luck finding the answer.  I have project with the following structure:</p>
  
  <pre><code>trunk
      src
      Doc
      lib
          external-lib1
          external-lib2
  </code></pre>
  
  <p>Of course the <code>external-lib1</code>  and <code>external-lib2</code> are external svn repos. I want to convert this so that the main repo has the exact same file structure but the lib directory contains regular directories.  It would be great if the history of the externals cold be preserved but that is not required. The result should look like this:</p>
  
  <pre><code>trunk
      src
      Doc
      lib
          lib1
          lib2
  </code></pre>