Configure the output based on the options. Doclets should sub-class Configuration, to configure and
add their own options. This class contains all user options which are supported by the 1.1 doclet and the standard doclet.
This is NOT part of any supported API. If you write code that depends on this, you do so at your own risk. This code and its internal interfaces are subject to change or deletion without notice. @author Robert Field. @author Atul Dambalkar. @author Jamie Ho