ruby-driver: add impl for diff
ruby-driver: add impl for diff

dubex/concourse,kylycht/concourse,aabdin01/concourse,vrnithinkumar/concourse,bigtreeljc/concourse,cinchapi/concourse,dubex/concourse,cinchapi/concourse,savanibharat/concourse,aabdin01/concourse,Qunzer/concourse,bigtreeljc/concourse,chiranjeevjain/concourse,Qunzer/concourse,chiranjeevjain/concourse,kylycht/concourse,vrnithinkumar/concourse,prateek135/concourse,cinchapi/concourse,savanibharat/concourse,karthikprabhu17/concourse,Qunzer/concourse,savanibharat/concourse,remiemalik/concourse,kylycht/concourse,aabdin01/concourse,bigtreeljc/concourse,JerJohn15/concourse,dubex/concourse,aabdin01/concourse,chiranjeevjain/concourse,kylycht/concourse,remiemalik/concourse,prateek135/concourse,chiranjeevjain/concourse,kylycht/concourse,prateek135/concourse,Qunzer/concourse,aabdin01/concourse,karthikprabhu17/concourse,hcuffy/concourse,Qunzer/concourse,bigtreeljc/concourse,bigtreeljc/concourse,hcuffy/concourse,JerJohn15/concourse,remiemalik/concourse,savanibharat/concourse,hcuffy/concourse,cinchapi/concourse,prateek135/concourse,hcuffy/concourse,hcuffy/concourse,vrnithinkumar/concourse,cinchapi/concourse,chiranjeevjain/concourse,dubex/concourse,chiranjeevjain/concourse,vrnithinkumar/concourse,JerJohn15/concourse,karthikprabhu17/concourse,JerJohn15/concourse,JerJohn15/concourse,JerJohn15/concourse,vrnithinkumar/concourse,hcuffy/concourse,karthikprabhu17/concourse,Qunzer/concourse,aabdin01/concourse,savanibharat/concourse,kylycht/concourse,vrnithinkumar/concourse,cinchapi/concourse,prateek135/concourse,dubex/concourse,remiemalik/concourse,savanibharat/concourse,prateek135/concourse,remiemalik/concourse,karthikprabhu17/concourse,dubex/concourse,bigtreeljc/concourse,karthikprabhu17/concourse,remiemalik/concourse