osrg/ryu-book — pull request #9 by ianychoi (2014-10-12 05:45:18+00:00)
Title: Korean revision & minor correction for ja,en&zh_tw

Please approve this pull request.

Main revisions are
: I smoothly revised Korean translation and added rest_qos chapter by seeing ja version book.
: I found 'Faild' typo for all the editions, so I corrected.
: I added 'translation preface' for Korean readers.

Thank you in advance!