Enable UDP encapsulation per default again, since it now works with Mavericks.
Enable UDP encapsulation per default again, since it now works
with Mavericks.

xwhuang/sctp-refimpl,sctplab/sctp-refimpl,deepak899/sctp-refimpl,deepak899/sctp-refimpl,sctplab/sctp-refimpl,xwhuang/sctp-refimpl,deepak899/sctp-refimpl,sctplab/sctp-refimpl,sctplab/sctp-refimpl,xwhuang/sctp-refimpl,xwhuang/sctp-refimpl,deepak899/sctp-refimpl,sctplab/sctp-refimpl,sctplab/sctp-refimpl,xwhuang/sctp-refimpl,deepak899/sctp-refimpl,xwhuang/sctp-refimpl,deepak899/sctp-refimpl