* config: singular ANSIBLE_COLLECTIONS_PATH
Every other *_PATH setting in ansible is singular, and the traditional
$PATH variable is also singular despite containing a list of
directories. Let's be consistent both internally and with POSIX
tradition.
* update all ANSIBLE_COLLECTIONS_PATHS env references to be singular
* deprecate plural ANSIBLE_COLLECTIONS_PATHS setting
* `meta/` directory in collections
* runtime metadata for redirection/deprecation/removal of plugin loads
* a compatibility layer to keep existing content working on ansible-base + collections
* a Python import redirection layer to keep collections-hosted (and otherwise moved) content importable by things that don't know better
* supported Ansible version validation on collection loads
* Set alter_sys=True instead of False to address backwards incompat
* ci_complete
* Add integration test
* ci_complete
* sanity
* ci_complete
* Changelog fragment
* Update import test and validate-modules to match
* Remove .keep files from test/results/ dirs.
* Remove classification of test/results/ dir.
* Add results_relative to data context.
* Use variables in delegation paths.
* Standardize file writing and results paths.
* Fix issues reported by PyCharm.
* Clean up invocation of coverage command.
It now runs through the injector.
* Hack to allow intercept_command in cover.py.
* Simplify git ignore for test results.
* Use test result tmp dir instead of cache dir.
* Remove old .pytest_cache reference.
* Fix unit test docker delegation.
* Show HTML report link.
* Clean up more results references.
* Move import sanity test output to .tmp dir.
* Exclude test results dir from coverage.
* Fix import sanity test lib paths.
* Fix hard-coded import test paths.
* Fix most hard-coded integration test paths.
* Fix PyCharm warnings.
* Fix import placement.
* Fix integration test dir path.
* Fix Shippable scripts.
* Fix Shippable matrix check.
* Overhaul key pair management.
* Cache ansible version lookup.
* Fix method of determining ANSIBLE_ROOT.
* Clean up based on PyCharm inspections.
* Generate minimal PKG-INFO without setup.py.
* Use ANSIBLE_LIB_ROOT where possible.
* Use import instead of subprocess to get version.
* Fix install layout type.
* Correct required paths message for installs.
* Update list of files copied during delegation.
* Fix ansible-test entry point.
* Fix pylint issue.
* Fix version lookup on Python 2.x.
* Fix pylint issue.
* Remove unwanted print statement.
