the main goal of this change is to make `make docker-isolated` work out
of the box
- specify the proper version for awx-expect --version
- update some deprecated playbook bits
- change the isolated container to privileged so bwrap will work
- fix awx-manage test_isolated_connection
- expedite the first isolated heartbeat so you don't have to wait 10m;
this is accomplished by _not_ setting Instance.last_isolated_check to
now() at insertion time (which causes the next check not to happen for
10 minutes)
- fix a bug that caused isolated node execution to fail when bwrap was
enabled
see: https://github.com/ansible/tower/issues/2150
This reverts commit 9863fe71dcaa987ed28d70ac6873ece058344ab3.
instead of launching isolated tasks via `systemctl`, treat
`awx.main.isolated.run` as an executable that knows how to daemonize
additionally, add `setup.py isolated_build` for isolated Tower source
distribution
