manpages.xsl: Output man pages into subdirectories based on the man page number

  (e.g., man3 for section 3 man pages)


[SVN r17965]

tools/boostbook

@@ -1 +1 @@
-Subproject commit 83006bbfb3ee3e566957168012d645a1a50c7e51
+Subproject commit ea66c4215c02c8f51ffa33d252dfce1aac267c89