Non-working package.json (npm install nodegit issue)

package.json

{
  "name": "nog",
  "version": "1.0.0",
  "description": "A simple site generator for GitHub Pages.",
  "main": "Gruntfile.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "repository": {
    "type": "git",
    "url": "https://github.com/nowzoo/nog.git"
  },
  "keywords": [
    "gh-pages",
    "grunt"
  ],
  "author": "Christopher Carson",
  "license": "MIT",
  "bugs": {
    "url": "https://github.com/nowzoo/nog/issues"
  },
  "homepage": "https://github.com/nowzoo/nog",
  "devDependencies": {
    "async": "^1.2.1",
    "bootstrap": "^3.3.5",
    "commander": "^2.8.1",
    "express": "^4.13.0",
    "grunt": "^0.4.5",
    "lodash": "^3.9.3",
    "marked": "^0.3.3",
    "moment": "^2.10.3",
    "nodegit": "^0.4.1",
    "promisify-node": "^0.1.5",
    "rimraf": "^2.4.0",
    "stopwords": "0.0.4",
    "string": "^3.3.0",
    "swig": "^1.4.2",
    "time-grunt": "^1.2.1",
    "yaml-front-matter": "^3.2.3"
  },
  "dependencies": {
    "ncp": "^2.0.0"
  }
}