Spring RTS Engine

Some server maintainance will take place over the next few days, on the lobbydev server for now. Later on the main server will be affected too, I'll post again when that's going to happen.

Tests on the lobbydev server went smoothly, so the main server will be updated early tomorrow morning. It will be offline for a while, likely finished before 9am CET.

The changes are code/userdb cleanup, please report issues to https://github.com/spring/uberserver/issues

All finished.

For the interested - command counts from a few months of uptime: https://pastebin.com/tU0MtkcS