Django-yamlconf

* Dropped explicit dependency on Django for package. Overall project
should include Django but also allows usage of package outside of a
Django project.

* Update to support Django 3.0 (staticfiles -> static in template)

* Added Django 3.0 example (polls)

* Removed the Django 1.x example (polls)

* Fix generation of the long description for the package.

* Updates to support Django 3.0: Simply use "`six`" instead of the
support "`django.utils.six`" package and use "`render`" instead of
"`render_to_response`".

* `ycsysfiles` should generate executable files if the source template
file is executable.

* Ensure the absolute path is used when searching for YAML control
files. This issue is seen when running Django apps under uWSGI
control.

* Added the built-in attribute `CPU_COUNT` (primarily for use in uWSGI
ini files) giving the number of available CPUs.

* Handle stricter loading for newer versions of PyYAML. The warning
"YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated" is
generated referring to https://msg.pyyaml.org/load for full details. The
YAML load now specified Loader=FullLoader.

* The `defined_attributes` function now returns a dictionary with additional
keys if the attribute defined is a nested dictionary, the top level
dictionary from the setting file is now also added, e.g., if
"DATABASES.default" is defined, the value returned will now have have a
"DATABASES" key.

* Added `docs` directory and Sphinx infrastructure to support publishing
to readthedocs.org

* Added support for a final, environment defined, YAML file defined
via the environment variable `YAMLCONF_CONFFILE`

Initial public release

0.x - 2018-08-07

Internal VMware releases