Feature: Nodejs as a Web Service - pt. 2. (#381)
* Server: Adds SASS service.
* Server: Adds autoprefixer service.
* Server: Integrates autoprefixer with LESS &
  SASS.
* Server: Using "commander" for CLI options.
* Server: Adds option for PID so a cron-job can
  collect the detached server process.
* Server: Do not perform any fs.write operation
  on server side. Instead send the JSON response
  to server.

* Client: Empty node-sass' middleware in PreBuild
* Client: Disposing logic.
* Client: Send self PID, so cron-job can do its
  job.
* Client: Adds a method to test heart-beat.
* Client: Launch node-server On package load.
* Misc. fixes for both clients and server.