code: function joinNodeModules(jsPaths){
      _.each(jsPaths, function(jsPath){
        var libPath = path.join(nodeModules, jsPath),
            flattenedLibPath = path.join(flattenedNodeModules, jsPath);
  
        if (fs.existsSync(libPath)) {
          defaultScripts.push(libPath);
        } else if (fs.existsSync(flattenedLibPath)) {
          defaultScripts.push(flattenedLibPath);
        } else {
          console.error('Could not find ' + jsPath);
        }
      });
    }
docs: Sets default script paths