phabricator: add a config knob to create obsolete markers when importing
This too can get a tristate switch if desired. But if so, that needs to happen
by having evolve add the option.
Differential Revision: https://phab.mercurial-scm.org/D8138
# name space package to host third party extensions
from __future__ import absolute_import
import pkgutil
__path__ = pkgutil.extend_path(__path__, __name__)