Merge pull request #6 from juliangruber/greenkeeper-mocha-2.4.1

Update mocha to version 2.4.1 🚀

Author: juliangruber

package.json

@@ -5,7 +5,7 @@
  "repository": "segmentio/binary-extract",
  "license": "MIT",
  "devDependencies": {
- "mocha": "2.3.4",
+ "mocha": "2.4.1",
  "matcha": "~0.6.0"
  },
  "scripts": {