Merge pull request WebexCommunity#132 from CiscoDevNet/v1.x

v1.6 - The Catch-Up Release

Merge pull request WebexCommunity#124 from CiscoDevNet/v1.x

v1.5

Merge pull request WebexCommunity#120 from CiscoDevNet/v1.x

Add support for the Admin Audit Events API

Update bot-with-card-example-flask.py

Flask catches the CTR+C interrupt.

Update dependencies

Update generator_containers.py

Use `generator_function.__name__` for Python2 compatibility instead of `generator_function.__qualname__`.

See issue WebexCommunity#57.

Update dependencies

Update generator_containers.py

Use `generator_function.__name__` instead of `generator_function.__qualname__` for Python2 compatibility.

PEP8

Fix datetime properties

Object properties should either return their value or `None` if no value is present.