Merge branch 'master' into jgrpp

# Conflicts:
#	src/ai/ai_core.cpp
#	src/ai/ai_gui.cpp
#	src/ai/ai_instance.cpp
#	src/console_cmds.cpp
#	src/engine_type.h
#	src/game/game_gui.cpp
#	src/game/game_instance.cpp
#	src/goal.cpp
#	src/goal_cmd.h
#	src/lang/english.txt
#	src/lang/estonian.txt
#	src/network/network_client.cpp
#	src/newgrf.cpp
#	src/newgrf_generic.h
#	src/openttd.cpp
#	src/saveload/saveload.h
#	src/script/api/script_log.cpp
#	src/script/api/script_town.cpp
#	src/settings_table.cpp
#	src/station_cmd.cpp
#	src/station_cmd.h
#	src/station_map.h
#	src/strings.cpp
#	src/table/settings/difficulty_settings.ini
#	src/table/settings/gui_settings.ini
#	src/tbtr_template_gui_main.h
#	src/timetable_cmd.cpp
#	src/timetable_cmd.h
#	src/timetable_gui.cpp
#	src/town_gui.cpp
#	src/train_gui.cpp
#	src/water_cmd.cpp

src/network/network.cpp

@@ -100,9 +100,6 @@ static_assert((int)NETWORK_COMPANY_NAME_LENGTH == MAX_LENGTH_COMPANY_NAME_CHARS
 /** The amount of clients connected */
 byte _network_clients_connected = 0;
 
-/* Some externs / forwards */
-extern void StateGameLoop();
-
 /**
  * Return whether there is any client connected or trying to connect at all.
  * @return whether we have any client activity