When installed into a path like /usr/lib/python2.7/dist-packages, this file
conflicts with the hgext3rd/__init__.py from mercurial itself. Let's keep the
mercurial version the canonical one, and just skip packaging this one.
I added a warning to this repo's __init__.py about behavior divergences between
this __init__.py and mercurial's version.
The package now has a dependency on a .so, so it's
architecture-specific now. Technically we should split the
architecture-specific and architecture-independent bits into separate
packages, but I don't want to bother with that for a one-off package
script like this.
Doing this rather than depending on Mercurial will allow developers of
Mercurial to have this package installed without having to do
something awkward to not also get Mercurial from their distro.
