Release: 2020-07-21

 - fixed several exploits that could be used to:
   * load custom content in certified clients
   * join servers with fake names
   * bypass server passwords
   * gain an unfair advantage
   * change player names in online games
   * sabotage the admin web-interface
   * crash / slow down servers
   * break the portal connection of servers
 - fixed a bug that caused an incorrect name conflict error on joining a server
 - limited maximum values for time- and frag limit votes