Added Persistence::initialize(f) + fixed minor bug LinearKernel::sign_at_negative_infinity()
add_subdirectory (alphashapes)
#add_subdirectory (ar-vineyard)
add_subdirectory (cech-complex)
add_subdirectory (consistency)
add_subdirectory (cohomology)
add_subdirectory (fitness)
add_subdirectory (pl-functions)
add_subdirectory (triangle)
add_subdirectory (poincare)
add_subdirectory (rips)