Replication of the Demographic Prisoner's Dilemma 1.0.0

The provided source code is the result of our efforts in replicating Epstein's Demographic Prisoner's Dilemma. The simulation model is written in Repast/J 3.1.
This is a companion discussion topic for the original entry at https://www.comses.net/codebases/2251/releases/1.0.0/