Refactoring for ES2015

[mediba-Kitada]

• ES2015 style
• Lint by ESLint
  • standardJS
• Remove new lines

[davidtheclark]

@mediba-Kitada I don't want to do this ... why are you doing this?

[mediba-Kitada]

@davidtheclark
Thank you for your reply.
I'm using saddler for my app's CI, but output(checkstyle v4.3) with this script doesn't conform checkstyle.
It's because this script outputs XML including new lines and spaces.

checkstyle format is very useful and this script is awesome 😄
So I wanna contributing for your script.

Regards,

[davidtheclark]

@mediba-Kitada: Thanks for the explanation! In the future I suggest sharing the explanation, probably by filing an issue, before putting in all the work for a PR, in case the maintainer disagrees with your proposals. 👍

I'm actually wondering now if you're interested in taking over the project? (Then you can use whatever code style you want 😄.) I'm not using checkstyle myself anymore; so this project would be better off in the hands of somebody actively using it. Are you interested? If so, I could add you as a collaborator on npm and transfer the repo to your GitHub account.