boost/python/object_core.hpp: trac #6890
Replace all uses of boost/utility.hpp with more-granular includes.  Solves modularization dependency nightmare.
python: minor doc bug fix (ticket #7014)
applying patch from trac ticket 4609
libs/python/doc/projects.html: update pointed out by Greg Landrum
libs/python/doc/projects.html: adding Pyrap