geometry.index: docs - updated rtree times and linear picture, test - cosmetic change in experimental query iterator test, example - added experimental query iterator to the benchmark

svn path=/trunk/libs/geometry/; revision=83944
geometry.index rtree: error fixed in linear redistribute_elements, errors fixed in experimental spatial query iterator and visitor.

svn path=/trunk/boost/geometry/; revision=83945
geometry.index rtree: dependency removed - node_auto_ptr base class noncopyable - implemented manually.

svn path=/trunk/boost/geometry/; revision=83946
geometry.index docs: added missing newlines at the end of some example src files.

svn path=/trunk/libs/geometry/; revision=83947