general cleanup
* tweak recovery email messages * update Django version (security update) * update copyright years * remove unused config settings * update model diagram (and instructions) Signed-off-by: David Seaward <david.seaward@puri.sm>
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* tweak recovery email messages * update Django version (security update) * update copyright years * remove unused config settings * update model diagram (and instructions) Signed-off-by: David Seaward <david.seaward@puri.sm>