Japanese

added a japanese translation.

also note [this edit](https://github.com/dcsan/accounts-entry/compare/japanese?expand=1#diff-49fb32b6d8276ecd1268e47c0339d55cR26)
to add namespace around simple-form > `  'joshowens:simple-form',`

this is because i was having problems:
    Could not resolve the specified constraints for this project:
    Error: unknown package: simple-form

however I note that this package in [atmosphere](https://atmospherejs.com/joshowens/simple-form) says `INCOMPATIBLE WITH METEOR 0.9.0 OR LATER`


still getting the hang of forking packages, so I guess you may want to ignore the rest of the versions.json that came with the commit. to test things I ran your package within a vanilla checkout of your boilerplate app. I think that file gets rebuilt anyway? but jfyi.