Merge branch 'master' into jgrpp

# Conflicts:
#	src/airport_gui.cpp
#	src/blitter/32bpp_anim_sse4.cpp
#	src/console_cmds.cpp
#	src/linkgraph/linkgraph_gui.cpp
#	src/newgrf_object.h
#	src/road_gui.cpp
#	src/widgets/road_widget.h
#	src/window.cpp

src/video/cocoa/cocoa_wnd.mm

@@ -1271,8 +1271,12 @@ void CocoaDialog(const char *title, const char *message, const char *buttonLabel
 /** Screen the window is on changed. */
 - (void)windowDidChangeBackingProperties:(NSNotification *)notification
 {
+	bool did_adjust = AdjustGUIZoom();
+
 	/* Reallocate screen buffer if necessary. */
 	driver->AllocateBackingStore();
+
+	if (did_adjust) ReInitAllWindows(true);
 }
 
 /** Presentation options to use for full screen mode. */