MFbed: Update the German Handbook.
books/handbook/colophon.sgml 1.7 -> 1.8
books/handbook/book.sgml 1.133 -> 1.136
books/handbook/desktop/chapter.sgml 1.24 -> 1.26
books/handbook/bibliography/chapter.sgml 1.50 -> 1.56
share/sgml/catalog header update
share/sgml/bookinfo.ent 1.2 -> 1.3
books/handbook/ppp-and-slip/chapter.sgml 1.108 -> 1.118
books/handbook/printing/chapter.sgml 1.73 -> 1.76
books/handbook/config/chapter.sgml 1.109 -> 1.117