Update settings.php

Based on .en and .zh, and my knowledge to .zh-tw and UI design exp.
Merge pull request #27 from ToroLiu/patch-1

Update Chinese settings.php
translation update
Japanese language files update
Merge pull request #28 from dokuwiki-translate/lang_update_101

Translation update (nl)
Merge pull request #29 from ssahara/japanese

Japanese language files update
translation update
Merge pull request #30 from dokuwiki-translate/lang_update_130

Translation update (ko)