code: function (done) {
              fs.readdir(globalConfig.root, function (err, files) {
                  if (err) return callback(err)
                  async.map(files, function (f, next) {
                      if (f !== 'apps' && f !== 'repos') {
                          f = globalConfig.root + '/' + f
                          pruned.push(f)
                          removeFile(f, next)
                      } else {
                          next()
                      }
                  }, done)
              })
          }
docs: clean root dir