Modified:
first step (not G, not J):
-- sec. 3.9.3.2: section completely rewritten (not F)
+- sec. 3.7.3: changed sentences
+- sec. 3.9.1: new handling of dashes
+- sec. 3.9.2: new section
+- sec. 3.9.4.2: section completely rewritten (not F)
- sec. 6.1: new reference format and new options (not F)
- sec. 6.5: section and its subsections completely rewritten
- sec. 6.8: new feature "inverted branches" (not F)
+- sec. A.4.3 new menu
- sec. B.12 new sentences (not F)
- sec. C.1.2.3 new sentence (not F)