Update dependencies; use Node stable (v4 for now)

Author: fkling

.travis.yml

@@ -1,4 +1,4 @@
 sudo: false
 language: node_js
 node_js:
-  - "0.10"
+  - "stable"

bin/__tests__/react-docgen-test.js

@@ -20,7 +20,6 @@ var fs = require('fs');
 var path = require('path');
 var rimraf = require('rimraf');
 var temp = require('temp');
-require('es6-promise').polyfill();
 
 function run(args, stdin) {
   return new Promise(resolve => {

package.json

@@ -24,18 +24,17 @@
   "author": "Felix Kling",
   "license": "BSD-3-Clause",
   "dependencies": {
-    "async": "^0.9.0",
-    "babel-runtime": "^5.7.0",
+    "async": "^1.4.2",
+    "babel-runtime": "~5.8.25",
     "babylon": "~5.8.3",
-    "node-dir": "^0.1.6",
+    "node-dir": "^0.1.10",
     "nomnom": "^1.8.1",
-    "recast": "^0.10.31"
+    "recast": "^0.10.33"
   },
   "devDependencies": {
     "babel": "^5.6.23",
     "babel-jest": "^5.3.0",
-    "es6-promise": "^2.0.1",
-    "jest-cli": "^0.4.0",
+    "jest-cli": "^0.5.8",
     "rimraf": "^2.3.2",
     "temp": "^0.8.1"
   },