Update findbugs from 3.0.0 to 3.0.1.

doc/manual.xsl

 <?xml version='1.0'?>
 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                 version='1.0'
                 xmlns="http://www.w3.org/TR/xhtml1/transitional"
                 exclude-result-prefixes="#default">
 
 <!-- build.xml will substitute the real path to chunk.xsl here. -->
-<xsl:import href="/Users/pugh/tools/docbook-xsl-1.76.1/html/chunk.xsl"/>
+<xsl:import href="/Users/pugh/tools/docbook-xsl-1.78.1/html/chunk.xsl"/>
 
 <xsl:template name="user.header.content">
 
 </xsl:template>
 
 <!-- This causes the stylesheet to put chapters in a single HTML file,
      rather than putting individual sections into separate files. -->
 <xsl:variable name="chunk.section.depth">0</xsl:variable>
 
 <!-- Put the HTML in the "manual" directory. -->
 <xsl:variable name="base.dir">manual/</xsl:variable>
 
 <!-- Enumerate sections. -->
 <xsl:variable name="section.autolabel">1</xsl:variable>
 
 <!-- Name the HTML files based on the id of the document elements. -->
 <xsl:variable name="use.id.as.filename">1</xsl:variable>
 
 <!-- Use graphics in admonitions -->
 <xsl:variable name="admon.graphics">1</xsl:variable>
 
 <!-- Admonition graphics are in the same place as the generated HTML. -->
 <xsl:variable name="admon.graphics.path"></xsl:variable>
 
 <!-- Just put chapters and sect1s in the TOC. -->
 <xsl:variable name="toc.section.depth">1</xsl:variable>
 
 </xsl:stylesheet>