adds v2.2.1 release

adds v2.2.0 release

adds v2.1.0 tag

adds new SocketIO class + TCP_NODELAY option

new 2.0.1 release

adds AMQP 0.9.1 support

version 1.2.1 throw exception when using exchange bind/unbind with am…

…qp 0.8

version 1.2.0 adds exchange bind/unbind

version 1.1 includes many bug fixes

version 1.0