added skills to jobs
added skills to vehicle
replaced penVehicle creation by copy constructor of vehicle
Merge branch 'master' into skills
added new method update(VehicleRoute)
created SkillUpdater
added .getSkills() to jobs
added new internal StateId SKILLS
added skills
created new Skills obj
changed javadoc
added skills to reservedIds
simplified if statement core.problem.solution.route.state.StateFactory
Merge branch 'master' into skills
added SkillConstraint
removed warnings and added .updateSkills
bugfix #111
activated skillConstraints
activated skillContraints
plot solution as well