title: Can you "hg rebase --svn" from TortoiseHg?
body: <p>I'm using hgsubversion + mercurial against an SVN repo.
  I notice that the rebase from TortoiseHg seems to corrupt my repository 
  (I can no longer push to Subversion)</p>
  
  <p>Can I mimic <code>hg rebase --svn</code> from the TortoiseHg UI?</p>