fix a few isolated dev issues

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 9863fe71dc.

awx/playbooks/clean_isolated.yml

@@ -18,7 +18,7 @@
       file: path="{{item}}" state=absent
       register: result
       with_items: "{{cleanup_dirs}}"
-      until: result|succeeded
+      until: result is succeeded
       ignore_errors: yes
       retries: 3
       delay: 5
@@ -26,4 +26,4 @@
     - name: fail if build artifacts were not cleaned
       fail:
         msg: 'Unable to cleanup build artifacts'
-      when: not result|succeeded
+      when: not result is succeeded