Test event API access
We need to do some testing of how access is handled for the events API. But I am not sure that we have time for developing a complete set of unit tests at present. And, since we actually don't want to allow any public access to the events API, that helps simplify things.
For now, I think we should just add the IsAuthenticated permission and write a few simple unit tests which loop over the events API urls and make sure that unauthenticated attempts to get to them fail.
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