Add comments to all functions. Optimize move constructor and move assigment operator, remove size check inside pop/remove/peek. Static assert in pushtyp/addtyp/poptyp in order to avoid pitfall with std::string (pushstr/addstr/popstr should be used for that). Add sanity check for poptyp, size of message must match desired type.
This class handles multipart messaging. It is the C++ equivalent of zmsg.h, which is part of CZMQ (the high-level C binding). Furthermore, it is a major improvement compared to zmsg.hpp, which is part of the examples in the ØMQ Guide. Unnecessary copying is avoided by using move semantics to efficiently add/remove parts.
