* Fix nested template test.
There were two issues with the previous implementation:
1. The LOGNAME environment variable may not be set.
2. The comparison assumed that testhost is localhost.
* Fix variable display for cartesian lookup test.
* Fix vars list test.
The test assumed that the ansible_user variable is always set,
which is not guaranteed when using connections other than local.
* Fix supervisorctl integration test.
Use ansible_user_id instead of ansible_user since ansible_user
is not guaranteed to be available when the connection is not local.
* Fix file integration test.
Use ansible_user_id instead of ansible_user since ansible_user
is not guaranteed to be available when the connection is not local.
* Fix expect integration test.
Do not assume module_utils is available for utility scripts.
* Fix python_requirements_info integration test.
Check for pip instead of ansible, since ansible is not guaranteed
to be installed when using a connection other than local.
* Fix ansible-runner integration test.
Use implicit localhost to run the test since it requires access
to the ansible installation currently being tested.
* Fix tower_common integration test.
Accept errors on stdout or stderr.
* Fix tower_user integration test.
Recognize errors on stdout or stderr.
