Login Changes: Australian Access Federation integration

We've recently changed our authentication to use the Australian Access Federation. The main benefit is that users from other universities across Australia can use their own institutional credentials to access our database, without having to create a new username/password. However, we still have support for generic username and passwords to support our friends overseas. The other benefit of making this switch is to provide a better user experience in terms of data integration from our ecosystem of databases via single-sign on. We can seamlessly pull information from various places to provide an aggregated view of data. Australian users should use the [Login via AAF] option, while others should use [Basic Login].

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