Update Korean translation and change some small stuffs

[Johnmacrocraft]

The biggest translation update!

[Johnmacrocraft]

For s**t part, I translated it to match original sentence as possible.

[fengberd]

Good update,but the new version may not be published in recent :) I'm ran out of ideas about new functions lol.

[Johnmacrocraft]

@fengberd Oh, ok. Could you change 성능을 줄일 수 있습니다. to 성능이 저하될 수 있습니다. on your next commit? Of course I can create new pull request again, but I think it's not worth to create more than one pull request in a day (spamming).

[Johnmacrocraft]

@fengberd Also this: 동의 & 계속 to 동의 및 계속

[fengberd]

I'm in school right now,next commit may be put off until 2017.10.1 or even later...

On Sep 10, 2017 8:30 PM, "Johnmacrocraft" notifications@github.com wrote:

@fengberd https://github.com/fengberd Also this: 동의 & 계속 to 동의 및 계속

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[Johnmacrocraft]

@fengberd Emm... You forgot changing stuffs along with your two commits that I've requested?

[fengberd]

Done

[Johnmacrocraft]

@fengberd Thank you!