--the internal separator codebase has been simplified
a lot and uses a new approach that provides a smoother
parabolic effect. This is part1 concerning improve separators,
in part2 applets separator will to try to be improved
--new architecture for the internal tasks separator,
one of which we can build upon for the future... No
breakage in the animation now, it is much smoother and
cleaner... but... it is needed to update all the pieces
around in order to work properly on all cases...