Japanese translation update

[Ashitaba YOSHIOKA，修改在13 年前。]

Hi Julio,

Now I updated Japanese translation.
I uploaded two files in LPS-11564.

- diff_with_59046.txt
- Language_ja.properties.native.0726

I updated translations based on svn revison 59046.
Could you update trunk with them?

Best regards,
YOSHIOKA Ashitaba

[Julio Camarero，修改在13 年前。]

Thanks a lot Ashitaba!

I just updated trunk.