Trying to simplify the boostbook parameters.

[SVN r59706]

Jamroot

@@ -190,9 +190,8 @@ project boost
       # Comeau does not support shared lib
       <toolset>como:<link>static
       <toolset>como-linux:<define>_GNU_SOURCE=1
-      # When building docs within Boost, we want the Boost standard navbar
-      <xsl:param>nav.layout=horizontal
-      <xsl:param>boost.image=Boost
+      # When building docs within Boost, we want the standard Boost style
+      <xsl:param>boost.defaults=Boost
     : usage-requirements <include>.
     : build-dir bin.v2
     ;

tools/boostbook

@@ -1 +1 @@
-Subproject commit 1500f71c0a842277149086f2cfa0db998795868a
+Subproject commit fe66ec4dba13886d94c758957709364b056d2e9b