集成测试框架
Merge branch 'master' of http://gitlab.alibaba-inc.com/shijia.wxr/rocketmq
fixed #51 Produer在处理事务Check请求时，支持排队，队列默认2000个请求，单线程处理，用户可配置
@qianjinkr
Merge branch 'master' of gitlab.alibaba-inc.com:shijia.wxr/rocketmq
Merge https://github.com/alibaba/RocketMQ