--the new code is more consistent and calculates the
appropriate place to add an applet much better
based on the distance that dropped applet is
having with each layout.
--provide addAppletItem function
--provide reorderSplitters in Start and End
layouts when an applet is added in them and
the splitters are moving in faulty position
--when an applet is not loaded properly is removed
from its registered order
--when an applet is loaded properly but is not found
in the registered order is at in the end of the stack
Michail Vourlakos