Change content_skiplist_findbefore() to return found indicator; use it to avoid indexing duplicates.
Change content_skiplist_findbefore() to return found indicator; use it to avoid indexing duplicates.

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