Npm install after running generator fails on windows

[VirtueMe]

After running yo aura I executed the command npm install and got the nice error message.

> phantomjs@1.8.2-2 install C:\GitHub\test\auratest\node_modules\grunt-mocha\node_modules\grunt-lib-phantomjs\node_modul
es\phantomjs
> node install.js


module.js:340
    throw err;
          ^
Error: Cannot find module 'buffers'
    at Function.Module._resolveFilename (module.js:338:15)
    at Function.Module._load (module.js:280:25)
    at Module.require (module.js:364:17)
    at require (module.js:380:17)
    at Object.<anonymous> (C:\GitHub\test\auratest\node_modules\grunt-mocha\node_modules\grunt-lib-phantomjs\node_module
s\phantomjs\node_modules\unzip\node_modules\binary\index.js:3:15)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Module.require (module.js:364:17)
npm ERR! weird error 8
npm ERR! not ok code 0

Running npm install grunt-mocha executed fine, but several attempts on running npm install displayed the error message ignoring the already installed grunt-mocha

Changing package.json to require grunt-mocha ~0.4.1 fixes this issue.

Otherwise nice job, guys, even if I selected to use bootstrap and when I run grunt build it complains that I don't have compass installed. Luckily I have the ruby environment on my machine so running gem install compass was not the hardest thing to do.