hgext/zeroconf/__init__.py: Separate relative and absolute imports.
2to3 complains when relative and absolute imports are mixed, this fix just
separates them on the zeroconf extension. According to 2to3, the other modules
are fine.
Basic install:
$ make # see install targets
$ make install # do a system-wide install
$ hg debuginstall # sanity-check setup
$ hg # see help
See http://mercurial.selenic.com/ for detailed installation
instructions, platform-specific notes, and Mercurial user information.