Update polygon in library list.

git-svn-id: http://svn.boost.org/svn/boost/trunk@84061 b8fc166d-592f-0410-95f2-cb63ce0dd405
Fix the block example.

git-svn-id: http://svn.boost.org/svn/boost/trunk@84062 b8fc166d-592f-0410-95f2-cb63ce0dd405
Support the token pasting operator in C++ code blocks. Refs #8510.

git-svn-id: http://svn.boost.org/svn/boost/trunk@84063 b8fc166d-592f-0410-95f2-cb63ce0dd405