--each applets layout can not identify properly
which applet is the first/last visible from its
contents. This way we can now identify properly
at all cases which applets should remove their
margins in order to follow Fitt's Law at screen
edges. For example when a windows buttons applet
is found at the screen edge and suddently it
hides itself then the next visible applet should
be considered at screen edge and such should remove
its margins in order to touch the screen edge.
--this patch positions correctly behaveAsPanel view
types in !compositing mode concerning and taking into
account maxLength and offset
--the patch introduces also an AppletsContainer to
substitute all three layouts of LayoutsContainer
Michail Vourlakos