Merge branch 'master' into jgrpp

# Conflicts:
#	cmake/CompileFlags.cmake
#	src/crashlog.cpp
#	src/fileio.cpp
#	src/fileio_func.h
#	src/fios_gui.cpp
#	src/ini_load.cpp
#	src/ini_type.h
#	src/lang/english.txt
#	src/lang/german.txt
#	src/lang/korean.txt
#	src/network/network_client.cpp
#	src/order_base.h
#	src/order_cmd.cpp
#	src/os/windows/win32.cpp
#	src/road_cmd.cpp
#	src/saveload/saveload.cpp
#	src/saveload/saveload.h
#	src/settings.cpp
#	src/station_cmd.cpp
#	src/stdafx.h
#	src/table/settings.ini
#	src/tree_cmd.cpp
#	src/tree_gui.cpp
#	src/vehicle_base.h
#	src/video/cocoa/cocoa_v.mm
#	src/video/cocoa/event.mm
#	src/video/cocoa/wnd_quartz.mm
#	src/viewport.cpp
#	src/widgets/tree_widget.h

src/tilehighlight_func.h

@@ -23,6 +23,7 @@ void SetObjectToPlace(CursorID icon, PaletteID pal, HighLightStyle mode, WindowC
 void ResetObjectToPlace();
 
 void VpSelectTilesWithMethod(int x, int y, ViewportPlaceMethod method);
+void VpStartDragging(ViewportDragDropSelectionProcess process);
 void VpStartPlaceSizing(TileIndex tile, ViewportPlaceMethod method, ViewportDragDropSelectionProcess process);
 void VpSetPresizeRange(TileIndex from, TileIndex to);
 void VpSetPlaceSizingLimit(int limit);