{
  "name": "rowcol",
  "version": "0.2.0",
  "description": "A library for row-column data manipulation.",
  "main": "index.js",
  "scripts": {
    "test": "grunt test"
  },
  "author": "Samuel Rouse <samuel.rouse@gmail.com> (http://samuelrouse.com)",
  "license": "MIT",
  "bugs": "https://github.com/oculus42/rc.js/issues",
  "repository": "oculus42/rc.js",
  "engines": ["node", "rhino"]
}

{
  "name": "rowcol",
  "version": "0.2.0",
  "description": "A library for row-column data manipulation.",
  "main": "index.js",
  "scripts": {
    "test": "grunt test"
  },
  "author": "Samuel Rouse <samuel.rouse@gmail.com> (http://samuelrouse.com)",
  "license": "MIT",
  "bugs": "https://github.com/oculus42/rc.js/issues",
  "repository": "oculus42/rc.js",
  "engines": ["node", "rhino"],
+  "devDependencies": {
+    "mocha": "2.2.x"
+  }
}

Add Dev Dependency for Mocha
Add Dev Dependency for Mocha