translation update
translation update
Japanese translation updates
translation update
Merge pull request #60 from dokuwiki-translate/lang_update_51

Translation update (es)
Merge pull request #56 from dokuwiki-translate/lang_update_24

Translation update (eo)
Merge pull request #57 from dokuwiki-translate/lang_update_31

Translation update (bn)
removed duplicat author line in lang file
Merge pull request #58 from ssahara/japanese-translation

Japanese translation updates