Made ContentName constructor cope with null parent. refs #100055
Made ContentName constructor cope with null parent.
refs #100055

svartika/ccnx,ebollens/ccnmp,ebollens/ccnmp,svartika/ccnx,cawka/ndnx,svartika/ccnx,cawka/ndnx,svartika/ccnx,ebollens/ccnmp,svartika/ccnx,cawka/ndnx,cawka/ndnx,ebollens/ccnmp,svartika/ccnx,cawka/ndnx,svartika/ccnx