geometry.index example: added end_query_iterator to benchmark_experimental.

git-svn-id: http://svn.boost.org/svn/boost/trunk@84121 b8fc166d-592f-0410-95f2-cb63ce0dd405
geometry.index: compile errors fixed in experimental iterators.

git-svn-id: http://svn.boost.org/svn/boost/trunk@84122 b8fc166d-592f-0410-95f2-cb63ce0dd405