Merge branch 'master' into jgrpp

# Conflicts:
#	Makefile.src.in
#	findversion.sh
#	projects/determineversion.vbs
#	src/aircraft_cmd.cpp
#	src/lang/dutch.txt
#	src/linkgraph/linkgraph_gui.cpp
#	src/linkgraph/linkgraph_gui.h
#	src/order_cmd.cpp
#	src/settings_gui.cpp
#	src/smallmap_gui.cpp
#	src/town_cmd.cpp
#	src/viewport.cpp
#	src/water_map.h

src/fios_gui.cpp

@@ -590,6 +590,7 @@ public:
 		if (_savegame_sort_dirty) {
 			_savegame_sort_dirty = false;
 			SortSaveGameList(this->fios_items);
+			this->OnInvalidateData(SLIWD_FILTER_CHANGES);
 		}
 
 		this->DrawWidgets();