Resolve issue 37 by always using BE byte ordering of the RTCP trailer.  Note, this commit will break backwards compatibility of RTCP protection when an AEAD profile is used.
Resolve issue 37 by always using BE byte ordering of the RTCP trailer.  Note, this commit will break backwards compatibility of RTCP protection when an AEAD profile is used.

persmule/libsrtp,yarrcc/libsrtp-ios,yarrcc/libsrtp-ios,yarrcc/libsrtp-ios,persmule/libsrtp,persmule/libsrtp