Update dependencies to enable Greenkeeper 🌴 (#3)

* chore(package): update dependencies

* docs(readme): add Greenkeeper badge

README.md

@@ -1,5 +1,7 @@
 # my-name-is-url [![Build Status](https://travis-ci.org/lukechilds/my-name-is-url.svg?branch=master)](https://travis-ci.org/lukechilds/my-name-is-url) [![Coverage Status](https://coveralls.io/repos/github/lukechilds/my-name-is-url/badge.svg?branch=master)](https://coveralls.io/github/lukechilds/my-name-is-url?branch=master)
 
+[![Greenkeeper badge](https://badges.greenkeeper.io/lukechilds/my-name-is-url.svg)](https://greenkeeper.io/)
+
 Intelligently recognises many different url formats in a string. For the browser and node. [Here, have a play](http://lukechilds.github.io/my-name-is-url).
 
 ## About

package.json

@@ -20,15 +20,15 @@
     "tlds": "^1.110.0"
   },
   "devDependencies": {
-    "ava": "^0.14.0",
+    "ava": "^0.19.1",
     "babel-cli": "^6.7.5",
-    "babel-plugin-add-module-exports": "^0.1.2",
+    "babel-plugin-add-module-exports": "^0.2.1",
     "babel-preset-es2015": "^6.6.0",
-    "codecov": "^1.0.1",
+    "codecov": "^2.2.0",
     "coveralls": "^2.11.9",
-    "eslint": "^2.8.0",
+    "eslint": "^3.19.0",
     "eslint-config-lukechilds": "^1.1.0",
-    "nyc": "^6.4.0",
+    "nyc": "^11.0.2",
     "pre-commit": "^1.1.2"
   },
   "scripts": {