If the user doesn't specify a configuration path, Killer will search the home and current directories for a config. If it can't find one, then the default will be loaded from the package resources. pkgutil makes this more portable and (should) work inside of a zip package.
Fixed Tox tests to not run Python 3.5 on Windows
Slightly more useful warning if import fails on Windows in Python 3.5
Summary
pkgutil
makes this more portable and (should) work inside of a zip package.tox -e check
passes now)