升级到 0.0.8-SNAPSHOT，将 HttpClient.sendHttpRequest返回值修改为void,
因为不能确保该发送请求能同步反馈是否发送
设置全局激活/禁止 HttpClient 的传输层日志输出（TRACE）级别
api 变更：将HttpReactor.onHttpContentReceived &
HttpReactor.onLastHttpContentReceived 的接收参数 从 HttpContent &
LastHttpContent 变更为 Blob
移除冗余静态方法
jocean-transportclient-0.0.8-release:
依赖 jocean-idiom-0.0.9-release/jocean-event-api-0.0.3-release