Merge pull request #4 from yiisoft/master

pull)
added yii version to the console help output
fixed broken link

fixes #3814
Fixed error in missing translations example

close #5347
Fixing wrong docs in RBAC PHPManager and wrong paths in security-authorization.md

close #5348
Update start-installation.md

close #5349
Update db-dao.md

close #5350
Translate images
Translate images
update images
Merge branch 'master' of https://github.com/al3ksandrsafonov/yii2
update images
Create concept-configurations.md

partial concept-configurations
Update README.md

Add some items missing
Update README.md

remove section extending yii
Update concept-configurations.md

add full translation
guide WIP
Merge branch 'master' of git://github.com/yiisoft/yii2
Change incorrect documentation for size

close #5355
finished logging guide [skip ci]