Merge pull request baidu#175 from cyshi/opensource

Fix message_header overflow

Merge pull request baidu#117 from briantigerchow/patch-1

Update README.md

Merge pull request baidu#34 from cyshi/master

add interface to posting protobuf data

Merge pull request baidu#22 from cyshi/master

fix RpcListener's _is_closed status to proper value

add multi_server_sample