- Made dock/clip steal appicons of applications that were started from a

shell/xterm or from the main menu, if there is a docked appicon of that
  class that is not running at the time the app is launched.
- Added animation to show that the appicon was stolen by the dock (the way
  NEXTSTEP did - map an appicon as it normally would have been, then slide it
  to the position the docked appicon is).
- Updated the animation constants for scrolling/sliding/shading to better
  adapt to newer/faster machines. Also used wusleep(10) when the delay was 0
  to get rid of the jerky animation when there was no delay.

src/menu.c

@@ -73,7 +73,7 @@ static struct {
     {MENU_SCROLL_STEPS_F, MENU_SCROLL_DELAY_F},
     {MENU_SCROLL_STEPS_M, MENU_SCROLL_DELAY_M},
     {MENU_SCROLL_STEPS_S, MENU_SCROLL_DELAY_S},
-    {MENU_SCROLL_STEPS_U, MENU_SCROLL_DELAY_U}};
+    {MENU_SCROLL_STEPS_US, MENU_SCROLL_DELAY_US}};
 
 
 static void menuMouseDown(WObjDescriptor *desc, XEvent *event);