messages/ja/yii.php updated
docs/guide/ja updated
Merge pull request #2616 from softark/ja-update-130728

Ja update 130728
Fixes related to #129 and #2446:

1. Fix CS.
2. Add additional PHPDoc declarations.
Merge branch 'master' of github.com:yiisoft/yii
Code style. Convert spaces to tabs.
Convert spaces to tabs.
Deleted unnecessary changelog.
Merge branch 'master' of git://github.com/yiisoft/yii into 2053-corrections-to-random-getters-see-PR-2604-discussion