un-used file moved to obsoletes
rename best_fit to best_fval
restriction violations no longer penalized
change generation of candidates to comply restrictions violation
number of active inequalities instead of penalty
param restrictions work also for constant params
no active inequality again
blockwise optimization updated but unfinished
Changes to accommodate DEB and fmincon

Penalties may be reintroduced in order to deal with other matlab
optimizers that do not support restrictions.