Log Message:
Update docbook-xsl to 1.59.2.  Changes follow:

   Release 1.59.2

   The 1.59.2 fixes an FO bug in the page masters that causes FOP to fail.

     o Removed the region-name from the region-body of blank pages. There's
       no reason to give the body of blank pages a unique name and doing so
       causes a mismatch that FOP detects.
     o Output IDs for the first paragraphs in listitems.
     o Fixed some small bugs in the handling of page numbers in double-sided
       mode.
     o Attempt to prevent duplicated IDs from being produced when endterm on
       xref points to something with nested structure.
     o Fix aligment problems in equations.
     o Output the type attribute on unordered lists (UL) in HTML only if the
       css.decoration parameter is true.
     o Calculate the font size in formal.title.properties so that it's 1.2
       times the base font size, not a fixed "12pt".

   Release 1.59.1

   The 1.59.1 fixes a few bugs.

     o Added Bulgarian localization.
     o Indexing improvements; localize book indexes to books but allow
       setindex to index an entire set.
     o The default value for rowsep and colsep is now "1" as per CALS.
     o Added support for titleabbrev (use them for cross references).
     o Improvements to mediaobject for selecting print vs. online images.
     o Added seperate property sets for figures, examples, equations,
       tabless, and procedures.
     o Make lineannotations italic.
     o Support xrefstyle attribute.
     o Make endterm on xref higher priority than xreflabel target.
     o Glossary formatting improvements.