(svn r13024) -Codechange: do not use WE_MOUSELOOP when WE_TICK suffices, rename WE_4 to something more descriptive and correct some (completely incorrect) comments.

src/smallmap_gui.cpp

@@ -982,7 +982,7 @@ static void SmallMapWindowProc(Window *w, WindowEvent *e)
 			}
 			break;
 
-		case WE_MOUSELOOP:
+		case WE_TICK:
 			/* update the window every now and then */
 			if ((++w->vscroll.pos & 0x1F) == 0) w->SetDirty();
 			break;