* add forked connMgr
* gaz
* add license header
* Merge branch 'master' of https://github.com/prysmaticlabs/geth-sharding into connMgr
* add conn manager test
* gaz
* fix connManager
* Merge branch 'master' of https://github.com/prysmaticlabs/geth-sharding into connMgr
* gaz
* remove todo
* add new dep
* lint
* lint
* lint
* space
* visibility
* Merge branch 'master' into connMgr
* Merge branch 'master' into connMgr
* Merge refs/heads/master into connMgr