2016-06-17, Version 6.2.2 (Current) Release

Notable changes:

* **http**:
  - req.read(0) could cause incoming connections to stall and time out
    under certain conditions. (Fedor Indutny) [#7211](https://github.com/nodejs/node/pull/7211)
  - When freeing the socket to be reused in keep-alive Agent wait for
    both prefinish and end events. Otherwise the next request may be
    written before the previous one has finished sending the body, leading
    to a parser errors. (Fedor Indutny) [#7149](https://github.com/nodejs/node/pull/7149)
* **npm**: upgrade npm to 3.9.5 (Kat Marchán) [#7139](https://github.com/nodejs/node/pull/7139)

https://github.com/nodejs/node/pull/7323