* Added validity checks for player names, they must be UTF-8 encoded, else game clients will crash attempting to set non-UTF-8 player names in RUI.
* CServer::RejectConnection now takes a 'v_netadr_t*', previously it was 'user_creds_s*', which worked as 'v_netadr_t' is the first member in 'user_creds_s'.
* Programmer must now manually pass a character buffer to 'v_net_adr::GetAddress(...)'.