Update CREDITS.md
openメソッドの解説を翻訳しました
Translate packages/auth/types/login.html
Update classes/database/db.html
Update general/configuration.html

翻訳完了。
Update general/constants.html

翻訳完了。
Merge pull request #170 from h2ospace/patch-3

たにぐちの名前を書き加えました
Merge pull request #171 from h2ospace/patch-4

openメソッドの解説を翻訳しました
Merge pull request #172 from mazzo46/packages/auth/types/login.html

packages/auth/types/login.html を翻訳
Merge pull request #173 from orcaaoshi/patch-8

Update classes/database/db.html
Merge pull request #174 from kenjis/patch-3

Update general/configuration.html
Merge pull request #175 from kenjis/patch-4

Update general/constants.html