History, Post User, Additional stuff

Lots of small and some large changes:

playerlist endpoint to show whatever info is currently present on all the players recorded
Fixes to name updates, and record account name from steam api
user POST endpoint to lookup and request information about specific accounts
Update modified and created fields in records
Add fetched field to Steam info
Add dumbAutokick field to internal preferences field of preferences API endpoint
Internal code improvements

MegaAntiCheat / client-backend