[PATCH] Unified os_rcpath, system_rcptah, and user_rcpath so the interface is similar across operating systems

[Alexis S. L. Carvalho]

Thus spake Shane Holloway:
> I was trying to get the path to the user's ~/.hgrc or Mercurial.ini  
> file in a cross platform way using the mercurial.util module, but I  
> found that the user_rcpath was not implemented for both platforms.   
> This patch adds the uniform interface.

I've pushed this to the crew repo, thanks.

Any chance that you can send another patch that defines a single version
of os_rcpath (outside that big "if os.name == 'nt':"), since both
versions are now identical?

And maybe one that changes debuginstall to display the places where
we'll look for config files, as returned by util.rcpath? :)

Alexis