OpenPLS v1.0

This is the original code used for the PhasedLocalSearch (PLS) experiments in the paper

Temporal Labeling: A New Unified Framework with Experiments,
L. Barth, B. Niedermann, M. Nöllenburg, and D. Strash,
Proceedings of the 24th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM SIGSPATIAL 2016)
arXiv:1609.06327