ja_JP locale support
Fix RSS Feeds

feed() still calls getAll() which was renamed to getProject() in 286b1935663ef3071ad6a0aae3078ad3a42b48e4
Update Swedish translations
Merge pull-request #330 (Japanese translation)
Merge pull-request #331 (RSS feed fix)
Merge pull-request #332 (Update Swedish translation)
Update Readme and sync locales
Update PicoDb
Update zh_CN translation.
Update zh_CN Translation.