* subversion/libsvn_client/relocate.c: New file that implements the --relocate functionality. (Forgot to commit this when I created issue-951-dev. Oops.) git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/issue-951-dev@845036 13f79535-47bb-0310-9956-ffa450edef68