Merge pull request #379 from koyhoge/1.7/develop_japanese

Translate document of reindex()
documented master/slave connection configuration
documented xss_clean options array
clarified the use of the Opauth callback URL
packages/auth/intro.html 翻訳完了
packages/auth/types/login.html 翻訳完了
packages/auth/types/* 表記ゆれ修正
Merge pull request #380 from sharkpp/1.7/develop_japanese

packages/auth/intro.html と packages/auth/types/* 翻訳完了
Update pagination.html
Merge pull request #381 from shinagaki/fix_pagination

Update pagination.html
documented error() method of Validation
Fix a word issue and default values
Update image.html
general/error.html 翻訳完了
general/hmvc.html 翻訳完了
Merge pull request #586 from hackoh/1.7/document_of_error_method_of_validation

documented error() method of Validation
Merge pull request #382 from shinagaki/fix_image

Update image.html
Merge pull request #383 from kenjis/general/error

general/error.html 翻訳完了
Merge pull request #384 from kenjis/general/hmvc

general/hmvc.html 翻訳完了
Add document of error_message of Validation