1.) Moved the CommandLineOptions' InputHandler object into FOUserAgent, allowing

1.) Moved the CommandLineOptions' InputHandler object into FOUserAgent, allowing
for a no-parameter constructor for AWTRenderer (like the other renderers).  (Code is
not yet ideal in AWTRenderer, but will do the task.)

2.) AWT renderer handling now more similar to the other renderers
(simplifications in Driver, Fop).

3.) Driver.getRenderer() removed from API.  (Renderer configuration now mostly
done through FOUserAgent, and setup of renderer prior to calling setRenderer().)

4.) Validity checking added to region-after, -start, -end, and -before.

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@197744 13f79535-47bb-0310-9956-ffa450edef68