remove bluebird from client, use ES6 promise instead

grunt/config/browserify.js

@@ -33,7 +33,7 @@ module.exports = {
       ignore: [
         'src/lib/connectors/jquery.js',
         'src/lib/connectors/xhr.js',
-        'bluebird'
+        'promise-js'
       ]
     }
   },
@@ -45,8 +45,8 @@ module.exports = {
       ignore: [
         'src/lib/connectors/angular.js',
         'src/lib/connectors/xhr.js',
-        'bluebird'
+        'promise-js'
       ]
     }
   }
-};
+};

package.json

@@ -42,6 +42,7 @@
     "aliasify": "~1.2.4",
     "async": "~0.8.0",
     "blanket": "~1.1.5",
+    "bluebird": "^2.9.14",
     "browserify": "~2.35.1",
     "expect.js": "~0.2.0",
     "express": "~3.4.7",
@@ -84,11 +85,11 @@
   },
   "license": "Apache-2.0",
   "dependencies": {
-    "bluebird": "^2.9.14",
     "chalk": "^1.0.0",
     "forever-agent": "^0.6.0",
     "lodash": "^3.10.0",
-    "lodash-compat": "^3.0.0"
+    "lodash-compat": "^3.0.0",
+    "promise-js": "0.0.6"
   },
   "repository": {
     "type": "git",

src/lib/transport.js

@@ -7,7 +7,7 @@ module.exports = Transport;
 var _ = require('./utils');
 var errors = require('./errors');
 var Host = require('./host');
-var Promise = require('bluebird');
+var Promise = require('promise-js');
 var patchSniffOnConnectionFault = require('./transport/sniff_on_connection_fault');
 var findCommonProtocol = require('./transport/find_common_protocol');
 
@@ -105,7 +105,12 @@ Transport.nodesToHostCallbacks = {
 };
 
 Transport.prototype.defer = function () {
-  return Promise.defer();
+  var defer = {};
+  defer.promise = new Promise(function (resolve, reject) {
+    defer.resolve = resolve;
+    defer.reject = reject;
+  });
+  return defer;
 };
 
 /**