Create ko.json

Translate to Korean language,
.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	package.json
Translate 40%
Translate 60%
Merge remote-tracking branch 'upstream/master'
Translate 90%
Add Simplified Chinese version of learnyounode && add new selectors
Add chapter-asia (ja)
translation`s correction in Portuguese Brazil
Merge remote-tracking branch 'upstream/master' into korean

Conflicts:
	languages/languages.json
Merge remote-tracking branch 'upstream/master' into korean
Add top-bottom header parts
Fix generate lang: make it insert links as well
Merge pull request #136 from sudodoki/fix/language-for-header

[Fix] Language for header: split in 2 parts, fix npm script for language
Fix existings languages headers
Merge pull request #137 from sudodoki/fix/language-for-header

Fix existings languages headers
merging selectors
Merge branch 'lisposter-master'
Merge pull request #124 from marocchino/patch-1

Add chapters-asia to ja translation