Update lang/nodejs4 to 4.4.2

4.4.2

* https: Under certain conditions ssl sockets may have been
  causing a memory leak when keepalive is enabled. This is no
  longer the case.
* lib: The way that we were internally passing arguments was
  causing a potential leak. By copying the arguments into an
  array we can avoid this.
* npm: Upgrade to v2.15.1. Fixes a security flaw in the use of
  authentication tokens in HTTP requests that would allow an
  attacker to set up a server that could collect tokens from
  users of the command-line interface. Authentication tokens
  have previously been sent with every request made by the
  CLI for logged-in users, regardless of the destination of
  the request. This update fixes this by only including those
  tokens for requests made against the registry or registries
  used for the current install.
* repl: Previously if you were using the repl in strict mode
  the column number would be wrong in a stack trace. This is
  no longer an issue.

4.4.1

* build:
  - Updated Logos for the OSX + Windows installers
  - New option to select your VS Version in the Windows installer
  - Support Visual C++ Build Tools 2015
* tools: Gyp now works on OSX without XCode

(fhajny)