Switched to a new architecture (Vineyard is a visitor for Filtration),
added LowerStarFilation, examples/grid (pdbdistance-vineyard in particular)
/*
* Author: Dmitriy Morozov
* Department of Computer Science, Duke University, 2006
*
* For now file exists only to store the main page of the documentation
*/
/** \mainpage
* Detailed description of Dionysus with references to all the classes,
* and code samples goes here.
*/