- Update to 8.4.5

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Upstream changelog:

1. Version 8.4.5 (2009-05-24)

   Additions and changes
     * Added manpage Name and Synopsis section title customization to
       languages configuration files.
     * Synopsis manpage section no longer mandatory.
     * Section markup templates can be specified by setting the title's
       first positional attribute or template attribute.
     * The article and book document header can now include a revision
       remark.
     * A role attribute can now be applied to block elements. This adds
       the role attribute to DocBook elements. Patch submitted by [1]Noah
       Slater).
     * Renamed revision and date attributes to more sensible and
       consistent revnumber and revdate (old names deprecated but still
       recognized).
     * Moved backend specific attributes to Appendix H in User Guide.
     * Renamed and generalized the docbook backend revision history
       inclusion mechanism to docinfo to reflect the use of all article or
       book information elements. The old revision history names still
       work but have been deprecated.
     * Refactored docbook.conf headers.
     * Moved line break replacement from [replacements] to [replacements2]
       so the replacement occurs after the mailto macro. This fixes bug
       [2]http://groups.google.com/group/asciidoc/browse_thread/thread/4bd
       cdfb0af773e2
     * The typewriter to punctuation apostrophe replacement can be escaped
       with a backslash.
     * Graphviz filter outputs images to imagesdir if it is defined.
     * Made the block image macro generic so that it can be used for
       filter outputs. As a result Music and Graphviz filters:
          + Have been greatly simplified.
          + Honor the data-uri attribute.
          + html4 outputs no longer generate W3C validation warning.
     * The iconsdir attribute no longer requires a trailing directory
       separator character.
     * Removed borders around linked html4 images.
     * Added html4 specific HTML output for music filter.
     * a2x: Added --unsafe option (shortcut for --asciidoc-opts=--unsafe).
     * a2x: The FOP executable can now be named fop (this is the default
       name in some distributions).
     * Attributes are now substituted in the system macro attribute list.
     * If the output is set to stdout (i.e. no output directory is
       defined) then Music and Graphviz filters will output included
       images to the source file directory.
     * Added name directive to testasciidoc.
     * Added lots of testasciidoc new tests.
     * Moved language specific configuration parameters into lang-en.conf
       file.
     * lang attribute entry can be specified in the AsciiDoc source file
       (preceding the header).
     * Removed cruft from A-A-P scripts and documented them.
     * Added German language config file (lang-de.conf) contributed by
       Michael Wild.
     * Added French language config file (lang-fr.conf) contributed by
       Yves-Alexis Perez.
     * Added Russian language config file (lang-ru.conf) contributed by
       Artem Zolochevskiy.
     * Added Hungarian language config file (lang-hu.conf) contributed by
       Miklos Vajna.

   Bug fixes
     * FIXED: Multiple manpage names are now handled correctly when
       generating DocBook output, each name now generates a separate
       DocBook <refname> element. See
       [3]http://groups.google.com/group/asciidoc/browse_thread/thread/c93
       bb4db025225d8
     * FIXED: A problem that caused AttributeEntries preceding the header
       to be overwritten when the language conf file loaded.
     * FIXED: Possible inline macro name ambiguity e.g. link matches
       olink.
     * FIXED: The documented macro definition deletion behavior had been
       broken for a long time.
     * FIXED: Email addresses not recognized when followed by a period
       character.
     * FIXED: Hyphens in mailto macros can delimit nested addresses e.g.
       bloggs@mail was processed inside
       mailto:joe-bloggs@mail-server.com[Mail].
     * FIXED: User name in FTP URI generated incorrect FTP link. See
       [4]http://groups.google.com/group/asciidoc/browse_thread/thread/1d7
       96a9c9ddb2855
     * FIXED: Source highlighter now works with Wordpress backend (see
       [5]http://groups.google.com/group/asciidoc/browse_thread/thread/6d8
       c716748b109e3).

  1.1. Regression issues

    1. A colon following the date in the AsciiDoc header is treated as a
       revision remark delimiter -- this could be an issue if you have
       used a colon in the header date.
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