Save settings when receiving an SDL_QUIT event.

Closes #1964.

git-svn-id: https://warzone2100.svn.sourceforge.net/svnroot/warzone2100/trunk@11126 4a71c877-e1ca-e34f-864e-861f7616d084

src/main.c

@@ -1000,6 +1000,7 @@ static void mainLoop(void)
 					handleActiveEvent(&event.active);
 					break;
 				case SDL_QUIT:
+					saveConfig();
 					return;
 				default:
 					break;