title: The package react@15.2.1 does not satisfy its siblings' peerDependencies requirements
body: <p>When trying to <code>npm install</code> I get these errors.
  Can't get why it's not running if I'm using the latest version of React.</p>
  
  <p><code>
  npm ERR! peerinvalid The package react@15.2.1 does not satisfy its siblings' peerDependencies requirements!
  npm ERR! peerinvalid Peer react-addons-css-transition-group@15.2.1 wants react@^15.2.1
  npm ERR! peerinvalid Peer react-animate-on-change@0.2.0 wants react@^0.14.5
  npm ERR! peerinvalid Peer react-dom@15.2.1 wants react@^15.2.1
  npm ERR! peerinvalid Peer react-dropdown@1.0.4 wants react@^0.14.7 || ^15.0.0-0
  npm ERR! peerinvalid Peer react-masonry-component@4.2.0 wants react@^0.14.0 || ^15.0.0-0
  npm ERR! peerinvalid Peer react-modal@1.4.0 wants react@^0.14.0 || ^15.0.0-0
  npm ERR! peerinvalid Peer react-native@0.29.0 wants react@~15.2.0
  npm ERR! peerinvalid Peer react-redux@4.4.5 wants react@^0.14.0 || ^15.0.0-0
  npm ERR! peerinvalid Peer react-router@2.5.2 wants react@^0.14.0 || ^15.0.0
  npm ERR! peerinvalid Peer react-toastr@2.7.0 wants react@^0.14.0 || ^15.0.0
  npm ERR! peerinvalid Peer redux-devtools@3.3.1 wants react@^0.14.0 || ^15.0.0-rc.1
  </code></p>