Merge branch 'master' into jgrpp

# Conflicts:
#	regression/regression/result.txt
#	src/autoreplace_cmd.cpp
#	src/industry_gui.cpp
#	src/landscape.cpp
#	src/network/network_content.cpp
#	src/newgrf_roadstop.cpp
#	src/pathfinder/yapf/yapf_ship.cpp
#	src/road_gui.cpp
#	src/saveload/ai_sl.cpp
#	src/saveload/saveload.h
#	src/saveload/vehicle_sl.cpp
#	src/station.cpp
#	src/station_gui.cpp
#	src/video/cocoa/cocoa_ogl.h
#	src/video/sdl2_opengl_v.h
#	src/video/video_driver.hpp
#	src/video/win32_v.h
#	src/widget_type.h
#	src/widgets/dropdown.cpp
#	src/widgets/dropdown_type.h
#	src/window.cpp

src/saveload/compat/game_sl_compat.h

@@ -19,7 +19,7 @@ const SaveLoadCompat _game_script_sl_compat[] = {
 	SLC_VAR("name"),
 	SLC_VAR("settings"),
 	SLC_VAR("version"),
-	SLC_VAR("is_random"),
+	SLC_NULL(1, SL_MIN_VERSION, SLV_AI_LOCAL_CONFIG),
 };
 
 /** Original field order for SlGameLanguageString. */