title: Any way to pull/update all subrepos?
body: <p>I'm looking into the viability of switching from svn to mercurial for my organization, but there's one hangup I can't seem to find a solution for.</p>
  
  <p>Is there any way to pull and update a repo and all subrepos without manually pulling and updating each one?</p>
  
  <p>I'd like to switch to mercurial, but if that's not possible then it's a no-go for us.</p>
  
  <p>Edit: Good god I must be tired today... two questions on SO for which I find the answers minutes after asking...</p>