Renamed ok0, ok1, ok2 to o0, o1, o2 and eliminated op0, op1, op2 in ligand::evaluate
Renamed ok0, ok1, ok2 to o0, o1, o2 and eliminated op0, op1, op2 in ligand::evaluate

HongjianLi/idock,HongjianLi/idock,HongjianLi/idock