added C_{dr}interval to registration.R
added C_{dr}interval to registration.R

nimble-dev/nimble,NLMichaud/nimble,nimble-dev/nimble,nimble-dev/nimble,nxdao2000/nimble,nxdao2000/nimble,NLMichaud/nimble,nimble-dev/nimble,NLMichaud/nimble,nxdao2000/nimble,NLMichaud/nimble,nimble-dev/nimble,nxdao2000/nimble