`npm test` no longer depends on make
`npm test` no longer depends on make

Before running the tests, make sure the files are built. Then run using
nodeunit.

Working towards better cross platform compatibility.

nullivex/node.bcrypt.js,greyhwndz/node.bcrypt.js,listepo/node.bcrypt.js,linalu1/node.bcrypt.js,greyhwndz/node.bcrypt.js,kelektiv/node.bcrypt.js,ksmyth/node.bcrypt.js,linalu1/node.bcrypt.js,ncb000gt/node.bcrypt.js,linalu1/node.bcrypt.js,ksmyth/node.bcrypt.js,listepo/node.bcrypt.js,ncb000gt/node.bcrypt.js,ksmyth/node.bcrypt.js,DJMcK/node.bcrypt.js,nullivex/node.bcrypt.js,nullivex/node.bcrypt.js,listepo/node.bcrypt.js,DJMcK/node.bcrypt.js,kelektiv/node.bcrypt.js,linalu1/node.bcrypt.js,kelektiv/node.bcrypt.js,ksmyth/node.bcrypt.js,kelektiv/node.bcrypt.js,ncb000gt/node.bcrypt.js,DJMcK/node.bcrypt.js,kelektiv/node.bcrypt.js,ncb000gt/node.bcrypt.js,greyhwndz/node.bcrypt.js,DJMcK/node.bcrypt.js,greyhwndz/node.bcrypt.js,nullivex/node.bcrypt.js,listepo/node.bcrypt.js