- Quote attribute values
- Remove obsolete beginpage
- CDATA marks should not contain spaces
- Add missing namespace declaration
- Add a missing closing tag
- Convert the Bengali translation to real UTF-8
- Drop SGML catalogs
- Drop DSSSL stylesheets
- Drop some DSSSL-related comments and Makefile code
- Remove Jade-related code
- Use namespace-aware stylesheets
- Drop more legacy stuff
- Port some of the customizations to DocBook 5.0
- Add namespace declaration to DocBook elements in entities since DocBook 5.0
  uses a namespace
- Drop Jade-specific compatibility nits
- Add the full DocBook DTD here, since customization with parameters entities
  is not possible any more
- Apply FreeBSD-specific customizations
- Convert some ulink elements to link
- Add namespace declarations
- More namespace declarations and ulink conversions
- Escape &
- Fix a closing tag
- Convert bibliographies to DB 5.0
- abstract should be in articleinfo
- Add more namespace declarations
- Allow buildtarget in para
- abstract should be part of articleinfo