* Don't set become_flags in become integration test.
Setting the flags in the test overrides the default value in the become plugins, which was not intentional.
* Remove hack for broken implicit tilde support.
It was only broken because the tests were overriding the default become flags for sudo.
* Simplify assertions.
* Use default group of staff on macos to prevent sudo issues
* Install gnu-tar for macos in git and unarchive tests
* Enable timezone module to support py3 on macos
* If the virtualenv command is missing, try python -m virtualenv
* Install passlib for filter_core on macos
* Install paramiko via pip on macos for paramiko tests
* Normalize discovered python interpreter on macos
* Get pip tests passing, by ensuring we have wheel installed
* Create /etc/ansible for ca certs on mac, list lookup_url as destructive
* Fixups for CA certs
* Include macos
* Dynamically get cafile instead of hardcoding the path
* Update Shippable integration test groups.
* Update integration test group aliases.
* Rebalance AWS and Azure tests with extra group.
* Rebalance Windows tests with another group.
* Add new Fedora docker images with Python 3.
* Use consistent env var for lookup test.
* Fix testing of virtualenv with Python 3.
* Fix docker_secret tests on Fedora 26.
* Add Python 3 support to Fedora postgresql test.
* Add Python 3 support to Fedora mysql tests.
* Fix uri test server for Python 3 on Fedora.
* Fix iso_extract test for Python 3 on Fedora.
* Add Python 3 support for Fedora to openssl tests.
* Fix dnf group test for Python 3 on Fedora.
* Use force with user deletion in become test.
This change corrects problems reported by the `yamllint` linter.
Since key duplication problems were removed in 4d48711, this commit
mainly fixes trailing spaces and extra empty lines at beginning/end of
files.
Martin Krizek