Fix an issue with fzn2py.awk where no output variables are specified in the mzn model.
lex_less_int and lex_lesseq_int now produce a simple lt/leq (instead of lexless/lexleq) if the given lists have only one item each.
Debug msg for restart parameters.
Enable njportfolio.py to parameterize solver.

Initial list of config has simply been hand configured. Training of schedules is left for future work.
Remove some debug output.
make local_install ensures now creates ./local_lib directory if it doesn't already exist.
Set memory limit to 16GB for minizinc challenge.