This interface represents the objects which provide support for
shorthand properties.
author: Stephane Hillion version: $Id: ShorthandManager.java 478160 2006-11-22 13:35:06Z dvholten $
Sets the properties which are affected by this shorthand
property.
Parameters: eng - The current CSSEngine. Parameters: ph - The property handler to use. Parameters: lu - The SAC lexical unit used to create the value. Parameters: imp - The property priority.