stream.on('finish') instead of close + updated dependencies

[bdnugget]

      // For some reason `end` event is not emitted.
      // .on('end', () => {
      //   Promise.all(filePromises).then(() => resolve(files));
      // })

This is because unzipper emits 'finish' instead of end, so I changed it.
Updated dependencies, Mocha now also outputs when tests passed.