Merge documentation fixes.

* Use `doc/src/*.css` instead of `doc/html/*.css`.
* Remove wiki and people directories.
* Some documentation fixes.
* Left out `minimal.css` changes and boostbook changes because of clashes.


[SVN r63347]

doc/Jamfile.v2

@@ -10,6 +10,7 @@ boostbook standalone
     :
         typeof
     :
+        <xsl:param>boost.root=../../../..
         <xsl:param>nav.layout=none
         <xsl:param>navig.graphics=0
     ;