Grammar fix [skip ci]

Create russian translation for caching-fragment.md

[ci skip] Create Russian translation of Caching Http Guide

spanish translate responses and some fixes [skip ci]

[skip ci] Italian translation of intro-upgrade-from-v1.md

[skip ci] started Japanese translation of the documentation

there is no reliable way to determine the cubrid PDO extension version used
and also no reliable way to detect which combination of server and client produces wrong behavior.

By requiering 9.3 or higher in both client and server we can be sure it works.

fixes #852

Update security-authorization.md

update translate conventions [skip ci]

also enhance test README