- Cleanup code which sets the checksum. - Bugfix: Disable CRC32C computation when sending to IPv6 address with           local scope.
- Cleanup code which sets the checksum.
- Bugfix: Disable CRC32C computation when sending to IPv6 address with
          local scope.

TopPano/sctp-refimpl,deepak899/sctp-refimpl,gale320/sctp-refimpl,ossy-szeged/sctp-refimpl,tosakanth/sctp-refimpl,xwhuang/sctp-refimpl,timsuchanek/sctp-refimpl,sctplab/sctp-refimpl,sdd330/sctp-refimpl,sctplab/sctp-refimpl,deepak899/sctp-refimpl,gale320/sctp-refimpl,sctplab/sctp-refimpl,sdd330/sctp-refimpl,deepak899/sctp-refimpl,deepak899/sctp-refimpl,TopPano/sctp-refimpl,tosakanth/sctp-refimpl,sdd330/sctp-refimpl,xwhuang/sctp-refimpl,sdd330/sctp-refimpl,gale320/sctp-refimpl,TopPano/sctp-refimpl,sdd330/sctp-refimpl,timsuchanek/sctp-refimpl,TopPano/sctp-refimpl,sctplab/sctp-refimpl,ossy-szeged/sctp-refimpl,tosakanth/sctp-refimpl,TopPano/sctp-refimpl,timsuchanek/sctp-refimpl,TopPano/sctp-refimpl,sdd330/sctp-refimpl,tosakanth/sctp-refimpl,TopPano/sctp-refimpl,tosakanth/sctp-refimpl,tosakanth/sctp-refimpl,gale320/sctp-refimpl,sctplab/sctp-refimpl,ossy-szeged/sctp-refimpl,xwhuang/sctp-refimpl,tosakanth/sctp-refimpl,TopPano/sctp-refimpl,ossy-szeged/sctp-refimpl,ossy-szeged/sctp-refimpl,sdd330/sctp-refimpl,xwhuang/sctp-refimpl,tosakanth/sctp-refimpl,deepak899/sctp-refimpl,ossy-szeged/sctp-refimpl,gale320/sctp-refimpl,timsuchanek/sctp-refimpl,sdd330/sctp-refimpl,timsuchanek/sctp-refimpl,xwhuang/sctp-refimpl,ossy-szeged/sctp-refimpl,gale320/sctp-refimpl,tosakanth/sctp-refimpl,deepak899/sctp-refimpl,timsuchanek/sctp-refimpl,gale320/sctp-refimpl,ossy-szeged/sctp-refimpl,timsuchanek/sctp-refimpl,ossy-szeged/sctp-refimpl,sdd330/sctp-refimpl,TopPano/sctp-refimpl,gale320/sctp-refimpl,sctplab/sctp-refimpl,xwhuang/sctp-refimpl,timsuchanek/sctp-refimpl,gale320/sctp-refimpl,timsuchanek/sctp-refimpl