Update dependencies to enable Greenkeeper 🌴 (#5)

* chore(package): update dependencies

https://greenkeeper.io/

* docs(readme): add Greenkeeper badge 

https://greenkeeper.io/

* Do not use current dependencies for jquery and highlightjs

- jQuery 3 does not work with Bootstrap
- hightligh.js^9 makes the build fail due  to  highlightjs/highlight.js#1452

Author: greenkeeper[bot]

README.md

@@ -1,5 +1,7 @@
 # bootprint-base 
 
+[![Greenkeeper badge](https://badges.greenkeeper.io/bootprint/bootprint-base.svg)](https://greenkeeper.io/)
+
 [![NPM version](https://badge.fury.io/js/bootprint-base.svg)](http://badge.fury.io/js/bootprint-base)
 [![Travis Build Status](https://travis-ci.org/bootprint/bootprint-base.svg?branch=master)](https://travis-ci.org/bootprint/bootprint-base)
 [![Coverage Status](https://img.shields.io/coveralls/bootprint/bootprint-base.svg)](https://coveralls.io/r/bootprint/bootprint-base)

package.json

@@ -26,19 +26,19 @@
   "homepage": "https://github.com/bootprint/bootprint-base",
   "dependencies": {
     "bootstrap": "^3.3.2",
-    "cheerio": "^0.19.0",
-    "handlebars": "^3.0.0",
-    "highlight.js": "^8.4.0",
+    "cheerio": "^0.22.0",
+    "handlebars": "^4.0.6",
+    "highlight.js": "^8",
     "jquery": "^2",
     "json-stable-stringify": "^1.0.0",
     "marked": "^0.3.3"
   },
   "devDependencies": {
     "bootprint": "^1.0.0",
     "chai": "^3.5.0",
-    "ghooks": "^1.0.3",
-    "m-io": "^0.3.1",
-    "mocha": "^2.4.5",
+    "ghooks": "^2.0.0",
+    "m-io": "^0.5.0",
+    "mocha": "^3.2.0",
     "thoughtful-release": "^0.3.0",
     "trace-and-clarify-if-possible": "^1.0.0"
   },