geometry.index rtree: dependency removed - node_auto_ptr base class noncopyable - implemented manually.

git-svn-id: http://svn.boost.org/svn/boost/trunk@83946 b8fc166d-592f-0410-95f2-cb63ce0dd405
geometry.index docs: added missing newlines at the end of some example src files.

git-svn-id: http://svn.boost.org/svn/boost/trunk@83947 b8fc166d-592f-0410-95f2-cb63ce0dd405