Update to latest version of buildtools
Update to latest version of buildtools

MattGal/wcf,ericstj/wcf,mconnew/wcf,imcarolwang/wcf,zhenlan/wcf,ElJerry/wcf,StephenBonikowsky/wcf,imcarolwang/wcf,mconnew/wcf,hongdai/wcf,imcarolwang/wcf,khdang/wcf,mconnew/wcf,dotnet/wcf,shmao/wcf,zhenlan/wcf,StephenBonikowsky/wcf,iamjasonp/wcf,shmao/wcf,KKhurin/wcf,dotnet/wcf,khdang/wcf,hongdai/wcf,dotnet/wcf,KKhurin/wcf,MattGal/wcf,ElJerry/wcf,ericstj/wcf,iamjasonp/wcf