- Created a new option ZMQ_ROUTER_RAW_SOCK
- Added new raw_encoder and raw_decoder to receive and send messages in raw form to remote client
- Added test case file tests/test_raw_sock.cpp
o To create a raw router sock set the ZMQ_ROUTER_RAW_SOCK option
o ZMQ_MSGMORE flag is ignored for non-id messages
o To terminate a remote connection send id message followed by zero length data message