Resurrected vineyard code:
* Switched StaticPersistence + (serializable) Filtration to Boost.MultiIndex
* Updated DynamicPersistenceTrails to work with the new MultiIndex way
* Created LSVineyard class, and fixed the grid examples
#include <boost/python.hpp>
#include <boost/python/iterator.hpp>
namespace bp = boost::python;
#include "chain.h"
namespace dp = dionysus::python;
void export_chain()
{
bp::class_<dp::VChain>("Chain")
.def("__iter__", bp::iterator<dp::VChain>())
.def("__len__", &dp::VChain::size)
;
}