Log Message:
Update lang/nodejs to 4.4.0. Clean stale bits from options.mk.

Notable changes

- deps: An update to v8 that introduces a new flag
  --perf_basic_prof_only_functions
- http: A new feature in http(s) agent that catches errors on keep
  alived connections
- src: Better support for Big-Endian systems
- tls: A new feature that allows you to pass common SSL options
  to tls.createSecurePair
- tools: a new flag --prof-process which will execute the tick
  processor on the provided isolate files
- build: Support python path that includes spaces. This should be
  of particular interest to our Windows users who may have python
  living in c:/Program Files
- https: A potential fix for #3692 HTTP/HTTPS client requests
  throwing EPROTO
- installer: More readable profiling information from isolate
  tick logs
- npm: upgrade to npm 2.14.20
- process: Add support for symbols in event emitters. Symbols
  didn't exist when it was written
- querystring: querystring.parse() is now 13-22% faster!
- streams: performance improvements for moving small buffers that
  shows a 5% throughput gain. IoT projects have been seen to be as
  much as 10% faster with this change!
- tools: eslint has been updated to version 2.1.0