Relabel NFA_* constants to EDGE_*.  Add a simple __dump() method to make it easier to visualize the NFA.
Relabel NFA_* constants to EDGE_*.  Add a simple __dump() method to make it easier to visualize the NFA.

cygx/nqp,cygx/nqp,cygx/nqp,cygx/nqp,cygx/nqp,cygx/nqp,cygx/nqp,cygx/nqp