Remove es6 polyfills and use native Promises

index.js

@@ -1,4 +1,3 @@
-require('es6-shim')
 module.exports = require('./lib')
 
 /**package

lib/cli.js

@@ -7,7 +7,6 @@ if (process.getuid && process.getuid() === 0) {
 }
 
 process.title = 'verdaccio'
-require('es6-shim')
 
 try {
   // for debugging memory leaks

package.json

@@ -23,7 +23,6 @@
     "commander": "^2.9.0",
     "compression": "^1.6.1",
     "cookies": "^0.6.1",
-    "es6-shim": "^0.35.0",
     "express": "^4.13.4",
     "handlebars": "^4.0.5",
     "highlight.js": "^9.3.0",
@@ -42,7 +41,6 @@
     "unix-crypt-td-js": "^1.0.0"
   },
   "devDependencies": {
-    "bluebird": "^3.3.5",
     "browserify": "^13.0.0",
     "browserify-handlebars": "^1.0.0",
     "eslint": "^2.9.0",

test/functional/gzip.js

@@ -1,7 +1,6 @@
 require('./lib/startup')
 
 var assert = require('assert')
-var Promise = require('bluebird')
 
 function readfile(x) {
   return require('fs').readFileSync(__dirname + '/' + x)

test/functional/index.js

@@ -1,6 +1,5 @@
 //require('es6-shim')
 require('./lib/startup')
-var Promise = require('bluebird')
 
 var assert = require('assert')
 var async  = require('async')

test/functional/lib/server.js

@@ -1,6 +1,5 @@
 var assert  = require('assert')
 var request = require('./smart_request')
-var Promise = require('bluebird')
 
 function Server(url) {
   var self = Object.create(Server.prototype)

test/functional/lib/smart_request.js

@@ -1,7 +1,6 @@
 
 var assert = require('assert')
 var request = require('request')
-var Promise = require('bluebird')
 var sym = Symbol('smart_request_data')
 
 function smart_request(options) {