Convert the output message from the RPC engine to binary before sending
Convert the output message from the RPC engine to binary before sending

Without the conversion, special characters with the high-bit set (0x80)
were being split using multibyte UTF-8 conversion. This was causing
mismatches in the VICS vs. VISTA responses.

vistadataproject/metaPureJS,vistadataproject/metaPureJS,vistadataproject/metaPureJS