Clean units

Summary:
To allow other custom actions, like clone VCS repositories,
the main init file should be an include index.

This is a follow-up for change 93a72bcf53c8.

Test Plan: salt-call --local state.apply roles/devserver/userland-home test=True

Reviewers: dereckson

Reviewed By: dereckson

Differential Revision: https://devcentral.nasqueron.org/D1403