Add ClassAd attribute values for RHEL 7.0 Beta to appropriate attribute definitions, such as OpSys and OpsysAndVer.  Forgotten with original ticket tasks.  #3629
Add ClassAd attribute values for RHEL 7.0 Beta to appropriate attribute
definitions, such as OpSys and OpsysAndVer.  Forgotten with original
ticket tasks.  #3629

htcondor/htcondor,djw8605/htcondor,zhangzhehust/htcondor,htcondor/htcondor,djw8605/htcondor,zhangzhehust/htcondor,zhangzhehust/htcondor,djw8605/htcondor,neurodebian/htcondor,neurodebian/htcondor,neurodebian/htcondor,neurodebian/htcondor,zhangzhehust/htcondor,zhangzhehust/htcondor,djw8605/htcondor,htcondor/htcondor,htcondor/htcondor,neurodebian/htcondor,htcondor/htcondor,zhangzhehust/htcondor,zhangzhehust/htcondor,djw8605/htcondor,htcondor/htcondor,neurodebian/htcondor,djw8605/htcondor,djw8605/htcondor,djw8605/htcondor,neurodebian/htcondor,htcondor/htcondor,zhangzhehust/htcondor,zhangzhehust/htcondor,neurodebian/htcondor,djw8605/htcondor,htcondor/htcondor,neurodebian/htcondor