1. Version 8.4.4 (2009-04-26)

   Additions and changes
     * Added table column and row spanning.
     * Table styles can now be applied per cell.
     * Vertical cell alignment can be applied to columns and individual
       cells.
     * Added table align attribute to set horizontal alignment for entire
       table.
     * Included Geoff Eddy's update of the experimental LaTeX backend.
     * A new attribute named trace controls the output of diagnostic
       information. If the trace attribute is defined then
       element-by-element diagnostic messages detailing output markup
       generation are printed to stderr.
     * Added literal paragraph style (allows literal style to be applied
       to normal paragraphs).
     * Deleted unused replacements2 from xhtml11.conf.
     * Added replacements2 to default substitutions.
     * testasciidoc.py: messages to stdout, only diffs to stderr.
     * Added transparency to smallnew.png image.

   Bug fixes
     * All combinations of leading comments and attribute entries at the
       start of a document are now skipped correctly.
     * FIXED: ./configure doesn't support --docdir as expected (patch
       submitted by Artem Zolochevskiy)
     * FIXED: Constrained quotes were incorrectly matched across line
       boudaries e.g. the string +\nabc+ incorrectly matched a monospace
       quote.