* screengrabs moved from "images" to "figures" to conform with GNOME
guidelines
* gramps-manual removed since that is now generated in the make process
and not needed in a developer's release.
svn: r1062
* "make install" only installs .sgml and .png files
* Added --enable-html option to configure if separate HTML docs desired
* Added "html" and "install-html" targets to documentation Makefiles
svn: r938