Added inertiaWeight setter in GCVelocityProvider.
Modified F-Race to sort the parameter configurations and to work with maximisation problems.
Merge pull request #151 from censlin/gcpsoInertiaSetter

Added inertiaWeight setter in GCVelocityProvider.
Added fold method to Objective.
Merge pull request #153 from filinep/frace-sorting

FRace additions
Fix vector sign operation
Merge pull request #162 from robgarden/vectorSign

Fix vector sign operation