2016-02-09, Version 4.3.0 'Argon' (LTS)

This is an important security release. All Node.js users should
consult the security release summary at nodejs.org for details on
patched vulnerabilities.

Note that this release includes a non-backward compatible change to
address a security issue. This change increases the version of the LTS
v4.x line to v4.3.0. There will be *no further updates* to v4.2.x.

* http: fix defects in HTTP header parsing for requests and responses
  that can allow request smuggling (CVE-2016-2086) or response
  splitting (CVE-2016-2216). HTTP header parsing now aligns more
  closely with the HTTP spec including restricting the acceptable
  characters.
* http-parser: upgrade from 2.5.0 to 2.5.1
* openssl: upgrade from 1.0.2e to 1.0.2f. To mitigate against the
  Logjam attack, TLS clients now reject Diffie-Hellman handshakes with
  parameters shorter than 1024-bits, up from the previous limit of
  768-bits.
* src:
  - introduce new `--security-revert={cvenum}` command line flag for
    selective reversion of specific CVE fixes
  - allow the fix for CVE-2016-2216 to be selectively reverted using
    `--security-revert=CVE-2016-2216`

PR-URL: https://github.com/nodejs/node-private/pull/20