Merge pull request #407 from koyhoge/1.7/develop_japanese

Fix unnatural wording.
目次の翻訳（途中）
Merge pull request #408 from kenjis/toc

目次の翻訳（途中）
packages/auth/simpleauth/usage.html を翻訳中
Merge pull request #409 from sharkpp/1.7/develop_japanese

packages/auth/simpleauth/usage.html を翻訳中
Update classes/fuel.html
Unification of terms
Update classes/config.html
目次の翻訳（途中）
Merge pull request #410 from shinagaki/fix_fuel

Unification of terms
Merge pull request #411 from kenjis/toc

目次の翻訳（途中）
packages/auth/*/usage.html タイトル翻訳
Merge pull request #412 from sharkpp/1.7/develop_japanese

packages/auth/*/usage.html タイトル翻訳
packages/auth/simpleauth/usage.html を翻訳
Merge pull request #413 from sharkpp/1.7/develop_japanese

packages/auth/simpleauth/usage.html を翻訳中
packages/auth/simpleauth/usage.html を翻訳中
packages/auth/simpleauth/usage.html 翻訳完了、翻訳部分統一
Update classes/lang.html
Merge pull request #414 from sharkpp/1.7/develop_japanese

packages/auth/simpleauth/usage.html 翻訳完了、型名を原文に復元
Merge pull request #415 from shinagaki/fix_lang

Update classes/lang.html