Merge pull request #1 from xiangli-cmu/master

initial prototype
Merge pull request #3 from xiangli-cmu/master

Add listener and introduce connectors in proxy
finish test proxy redirect
Merge pull request #5 from fengjingchao/master

finish test proxy redirect
Merge pull request #7 from xiangli-cmu/master

add stop function
Merge https://github.com/go-distributed/raccoon
fix test