FAQ refers user to tests

The FAQ question regarding sessions and the use of SimpleSessionHandler refers the user to a test for an example. There ought something in the samples for this because user's should not have to download the source distribution for FAQ level information.

I made this a bug because it should not be acceptable for a user-oriented FAQ to refer users to source-level artififacts.

Note also the linked issue from several years ago asking for user guide documentation of this same thing.