title: How can I group several mercurial repositories in one?
body: <p>I'm working on a project that use Mercurial as his source control manager.</p>
  
  <p>The directory structure is the following:</p>
  
  <p>repo/mylib1/.hg
  repo/mylib2/.hg
  ...
  repo/myApp/.hg</p>
  
  <p>I want everything under an unique repo (ie: repo/.hg) and, ideally, I want to keep the file history of each repo.</p>
  
  <p>Can I do that with Mercurial? How?</p>
  
  <p>Thanks!</p>