ElasticSearch tests fix
Added missing test models for elasticsearch
Added missing imports
Adjusted BaseActiveRecord code for better noSQL compatibility
Fixed typo in test
guide WIP [skip ci]
updated app structure diagram [skip ci]
resized diagram [skip ci]
resized diagram [skip ci]
diagram update [skip ci]
updated diagrams [skip ci]
diagram update [skip ci]
Added missing models for Redis tests
Fixed sqlite schema SQL
Added missing relations to Redis/Elasticsearch test models
Escaping of the special characters at 'MATCH' statement added
Merge branch 'master' of github.com:yiisoft/yii2
Usage of `yii\db\Expression` for the 'MATCH' statement fixed
Extra quote escaping at `yii\sphinx\Connection::escapeMatchValue()` fixed
Unnecessary line (left after https://github.com/yiisoft/yii2/commit/b39effda2e3b4b1280061f490ab1f277c02e6c74)