(1) Add customize tag feature in FixMessageHeader
(2) Add method compositeLogon for different client to overwrite
(3) Fix incoming sqn check
can set ChannelHandler to FixClient
Support for custom fields in header.
MessageSequenceProvider interface and Stateless implementation.
Support for custom fields in header; MessageSequenceProvider interface and Stateless implementation.
Support for custom fields in header; MessageSequenceProvider interface and Stateless implementation.