The third version of this track!

Version 2 of the JavaScript Track

Import the deprecated JavaScript track

We are deprecating the old JavaScript track, in favor of
ECMAScript, which has become the standard.

The Exercism website needs to have a git commit that it can
point all the existing JavaScript solutions, and we need that
commit to be in the repo for the ECMAScript track (soon to
be renamed to JavaScript).

This commit will do that for us.