Refactor code in lib/ folder

lib/cli.js

@@ -9,7 +9,6 @@ var path = require('path')
 var PHANTOM_VERSION = '^2.1.0'
 
 var info = chalk.blue.bold
-// var note = chalk.green.bold
 
 module.exports = (function () {
   return new Cli()
@@ -63,7 +62,6 @@ function Cli (options) {
 Cli.prototype.parse = function (argv, next) {
   this.errors = [] // clear errors
   var options = parseArgs(argv, this.options)
-  // var phantom
 
   if (options.version) {
     var pkg = require('../package.json')
@@ -148,7 +146,6 @@ Cli.prototype.parse = function (argv, next) {
 
 function createCheckPhantom (_phantomPath) {
   var phantomPath = _phantomPath
-  // var phantomVersion
 
   return function checkPhantom (_next) {
     var next = _next || function () { }