title: The package grunt does not satisfy its siblings' peerDependencies requirements
body: <p>I am trying to create my grunt build but stuck in following error</p>
  
  <pre><code>npm WARN package.json Dependency 'grunt' exists in both dependencies and devDependencies, using 'grunt@~0.4.2' from dependencies
  npm ERR! Darwin 13.4.0
  npm ERR! argv "node" "/usr/local/bin/npm" "install"
  npm ERR! node v0.12.0
  npm ERR! npm  v2.5.1
  npm ERR! code EPEERINVALID
  
  npm ERR! peerinvalid The package grunt does not satisfy its siblings' peerDependencies requirements!
  npm ERR! peerinvalid Peer grunt-contrib-requirejs@0.4.4 wants grunt@~0.4.0
  npm ERR! peerinvalid Peer grunt-config@0.1.8 wants grunt@~0.4.0
  npm ERR! peerinvalid Peer grunt-string-replace@0.2.8 wants grunt@~0.4.1
  npm ERR! peerinvalid Peer grunt-contrib-clean@0.5.0 wants grunt@~0.4.0
  npm ERR! peerinvalid Peer grunt-contrib-cssmin@0.10.0 wants grunt@~0.4.1
  npm ERR! peerinvalid Peer grunt-contrib-jshint@0.11.0 wants grunt@~0.4.5
  npm ERR! peerinvalid Peer grunt-contrib-uglify@0.8.0 wants grunt@&gt;=0.4.0
  npm ERR! peerinvalid Peer grunt-exec@0.4.6 wants grunt@~0.4
  </code></pre>
  
  <p>As <a href="https://github.com/DaftMonk/generator-angular-fullstack/issues/431" rel="nofollow">here</a> mentioned, I uninstalled my node,npm and grunt and reinstalled them but still facing same issue ?</p>
  
  <p>Any idea ?</p>
  
  <p>My JSON dependencies are :</p>
  
  <pre><code>"dependencies": {
      "grunt": "~0.4.2",
      "grunt-contrib-requirejs": "~0.4.1",
      "grunt-config": "~0.1.4",
      "grunt-string-replace": "~0.2.7",
      "grunt-contrib-clean": "~0.5.0",
      "grunt-contrib-cssmin": "~0.10.0"
    },
    "devDependencies": {
      "grunt": "0.4.2",
      "grunt-cli": "0.1.13",
      "grunt-contrib-jshint": "&gt;0.8.0",
      "grunt-contrib-uglify": "&gt;0.3.2",
      "load-grunt-tasks": "&gt;=0.3.0",
      "requirejs": "&gt;=2.1.10",
      "grunt-exec": "~0.4.5"
    }
  </code></pre>
  
  <p>Same thing is working fine for my colleague. </p>