Cleaned up Python bindings to restore functionality:
* StaticPersistence is iterable, its nodes are usable (sign, pair, cycle)
* StaticPersistence knows how to map its nodes into Filtration indices
* moved PythonCmp into utils.h
* minor cosmetic changes
set (libraries ${libraries}
${Boost_PROGRAM_OPTIONS_LIBRARY})
# Build compare-diagrams
add_executable (bottleneck bottleneck.cpp)
target_link_libraries (bottleneck ${libraries})