v2.4.2

1.Renamed start_time/end_time in query param to after/before
2.Added after/before query param to GET /divisions
3.Improved GET /divisions response
4.Renamed config.server_ip to config.server_host
5.Added ability to run multiple Drivers Hubs within one server process (multi mode)
6.Added POST /config/reload to reload config (POST /restart is disabled when multi_mode is active)