added prependChildPrefix method and a newRegisterBranch method that takes a child prefix; will call this register Branch and get rid of the other one once I have time to do a full compile
added prependChildPrefix method and a newRegisterBranch method that takes a child prefix; will call this register Branch and get rid of the other one once I have time to do a full compile

epishkin/scalatest-google-code,epishkin/scalatest-google-code