title: Can you disable version control integration in Xcode 4?
body: <p>I use <a href="http://www.zennaware.com/cornerstone/">Cornerstone</a> for managing my Subversion repositories, so I don't need Xcode's integration, and I'm noticing Xcode is dumping loads of SVN-related output into my console (it recognises that my project is a local SVN copy)...</p>
  
  <p>In particular, there are loads of <code>ERROR: Your working copy returned an SVN status of "external" that we don't handle (yet)</code> messages due to my svn:externals.</p>
  
  <p>This has to be slowing the IDE down - does anyone know of any way to disable the SVN integration in Xcode 4?</p>