调整请求响应回来后从repository中移除该请求的逻辑到finally块中
Merge pull request #19 from firefox007/master

扩展JDK ThreadPool
change context value from string to serializable
Merge branch 'master' of https://github.com/dianping/pigeon
add fail-over cluster implementation
add proxybeanfactory's cluster and customizedfilter config
Merge pull request #22 from liuliliujian/master

添加proxybeanfactory关于cluster和filter的配置
重构
Refactor filter context