- Share the Tox directory just between the Molecule tests (sharing between the Molecule tests and pre-commit, which have different dependencies, causes every change to rebuild the virtualenv).

- Disable testing on Python 3.5, it isn't supported by Molecule and doesn't seem to gonna be supported anytime soon.

- Remove OpenBSD 5.9 platform from testing, it never worked and it's not supported upstream anymore now that OpenBSD 6.1 was released.

- Correct assertion for Ansible 2.3.0.0 (ansible_distribution_release and ansible_distribution_version were reversed for OpenBSD prior to that version).

# Conflicts:
#	.travis.yml

- Don't cache .tox, packages aren't updated.

# Conflicts:
#	tests/requirements.txt

- Removed piprot dependency since it's used only with pre-commit and now it's installed inside the hook's virtualenv.

- Allow up to 45 minutes for molecule test (workaround builds that were killed because no output was received for 10 minutes, usually APT installations).

- Stop testing with Docker containers, they're only a good fit for a very limited use (cli applications, not services or system-level) and the speed of testing doesn't justify the work needed.

- Removed `--quiet` from the piprot check to see which packages are out
of date (check still works the same).
- Test on Python 3.5 and not 3.4 because Ansible is tested on 3.5 and
later.