Merge branch 'save_ext' into enhanced_viewport_overlay

# Conflicts:
#	src/smallmap_gui.cpp

src/misc_gui.cpp

@@ -1033,10 +1033,12 @@ struct QueryStringWindow : public Window
 		switch (widget) {
 			case WID_QS_DEFAULT:
 				this->editbox.text.DeleteAll();
-				/* FALL THROUGH */
+				FALLTHROUGH;
+
 			case WID_QS_OK:
 				this->OnOk();
-				/* FALL THROUGH */
+				FALLTHROUGH;
+
 			case WID_QS_CANCEL:
 				delete this;
 				break;
@@ -1186,7 +1188,8 @@ struct QueryWindow : public Window {
 					this->proc(this->parent, true);
 					this->proc = NULL;
 				}
-				/* FALL THROUGH */
+				FALLTHROUGH;
+
 			case WKC_ESC:
 				delete this;
 				return ES_HANDLED;