in migration controller to be compatible to more backends

fixes #3947

fixes #4123

Switched to Codeception 2.0.* for application template tests

Missing semicolon

New Chinese translations are ready to serve

Schema name was not used in ’SHOW CREATE TABLE’  query

Fixed bug where schema name was not used in ’SHOW CREATE TABLE’ query in `yii\db\mysql\Schema`

close #4162

Concept-service-locator - Russian translate

Guide-zh-cn/start-installation.md proofread.

Guide-zh-CN intro-upgrade-from-v1.md proofread.

Update QueryParamAuth.php

translate exception message

Correction semantic error on line 11.

Fixes #4147

fix typo in phpdoc of yii\redis\Connection [skip ci]

[skip ci] Added missing translation in Polish

fix link [skip ci]

Added Russian translate docs\guide-ru\concept-service-locator.md

migration fixed

Added Russian translate docs\guide-ru\concept-service-locator.md