Create a branch for documentation work.

svn path=/branches/doc/boost/ref.hpp; revision=44584
Fix the lincense url in shared container iterator documentation.

svn path=/branches/doc/libs/utility/; revision=44641
Merge with trunk.

svn path=/branches/doc/boost/utility/; revision=44810
Update 'more' links.

svn path=/branches/doc/libs/utility/; revision=44996