Add ``Event`` content to the detail page.

https://github.com/madewithbytes/us_ignite/issues/166
Add admin section for the ``Audience`` model.

https://github.com/madewithbytes/us_ignite/issues/166
Add ``Events`` management command to load initial fixtures.

https://github.com/madewithbytes/us_ignite/issues/166

The management command loads the initial fixutres, this command
has beem implemented to be executed in the production server,
and to be run while the dummy data is being generated.