go to utf-8 for CSV
delete the extraneous crap from the swiss energy CSV
have both swiss and US data
debug derivative explosion
handle time better in closure
fix explosions by bounding the gamma coefficient
fix broken us.production import code
actually use swiss  data (involves forcing R to regard it as floating point)
remove error trapping; seems to be slightly faster and the optimisation bounds have fixed that anyway
handle optional limits (so we can try simpler models)
be consistent handling years