Node Proxy Management

- Created `server_v2.js`
  - `server_v2.js` manages the proxy connections between the websockets and MPD instances
  - Usage:
    - Make sure to `npm install`
    - `node server_v2.js`
    - Eventually this will need to be run as a background service. This will mpst likely be done with [forever](http://blog.nodejitsu.com/keep-a-nodejs-server-up-with-forever/).
- Created `client_v2.js`
  - `client_v2.js` was used for testing the server during development. It takes user input and makes the necessary REST calls that will eventually be made by Java. PR #19
  - Usage:
    - Make sure to `npm install`
    - `node client_v2.js`
    - Commands:
      - `create host port pass` to make the REST call to create a Proxy
      - `destroy connectionID` to destroy the given Proxy
      - `quit` to quit the client.
- Updated play, pause, and stop components as a WIP example
  - The main purpose of this is to show how to use `'use strict';` in javascript and the JSLint options.
  - @nmont is working on a socket service that will create a single socket for all the components to use, and this will likely be overwritten and updated with that PR.
  - Normally for a PR, the `/* jslint devel: true */` would be removed, the `console.log` statements would be removed, and the code would be updated to pass JSLint/JSHint.
@ajlende I'm assuming that the `devel` header is remaining in place for this PR because the buttons are still WIP?