Add version 4 changelog
Add version 4 changelog

opensciencegrid/htcondor-ce,matyasselmeci/htcondor-ce,matyasselmeci/htcondor-ce,brianhlin/htcondor-ce,matyasselmeci/htcondor-ce,opensciencegrid/htcondor-ce,brianhlin/htcondor-ce,opensciencegrid/htcondor-ce,brianhlin/htcondor-ce