Fixed critical zSwing getter error
Fixed critical zSwing getter error

MaryMenges/PythonBaseballSim,Nicholas-Jason/PythonBaseballSim,SoftwarePhil/PythonBaseballSim,Nicholas-Jason/PythonBaseballSim,SoftwarePhil/PythonBaseballSim,MaryMenges/PythonBaseballSim,reidcooper/PythonBaseballSim,reidcooper/PythonBaseballSim