Merge pull request #8 from SimplePEG/greenkeeper/initial

Update dependencies to enable Greenkeeper 🌴

Author: obenjiro

README.md

@@ -1,4 +1,6 @@
 # JavaScript
+
+[![Greenkeeper badge](https://badges.greenkeeper.io/SimplePEG/JavaScript.svg)](https://greenkeeper.io/)
 [![Build Status](https://travis-ci.org/SimplePEG/JavaScript.svg?branch=master)](https://travis-ci.org/SimplePEG/JavaScript)
 [![Coverage Status](https://coveralls.io/repos/github/SimplePEG/JavaScript/badge.svg?branch=master)](https://coveralls.io/github/SimplePEG/JavaScript?branch=master)
 

package.json

@@ -29,13 +29,13 @@
   },
   "homepage": "https://github.com/SimplePEG/JavaScript#readme",
   "devDependencies": {
-    "chai": "^3.5.0",
+    "chai": "^4.1.0",
     "coveralls": "^2.11.9",
-    "eslint": "^3.12.2",
+    "eslint": "^4.3.0",
     "istanbul": "^0.4.4",
-    "mocha": "^2.4.5",
+    "mocha": "^3.4.2",
     "mocha-lcov-reporter": "^1.2.0",
     "recursive-readdir-sync": "^1.0.6",
-    "webpack": "^1.14.0"
+    "webpack": "^3.4.1"
   }
 }