Commit before merging in Python branch: * converted more examples: poincare, rips, some fitness * two generators for Rips complexes * ChainWrapper uses stl algorithms for everything, added CountingBackInserter and switched SizeStorage to use operators * retabbing files along the way * added #957a (namespace dionysus)

add_subdirectory			(alphashapes)
#add_subdirectory			(ar-vineyard)
add_subdirectory			(cech-complex)
add_subdirectory			(fitness)
#add_subdirectory			(grid)
add_subdirectory			(triangle)
add_subdirectory			(poincare)
add_subdirectory			(rips)