updated CHANGELOG.md
phpDoc micro-fix
Added ability to `yii\bootstrap\Tabs` to encode each `Tabs::items['label']` separately
fixed
Added info about local `encode` param which overrides global
Fix CHANGELOG.md
Merge pull request #4024 from umneeq/yii-bootstrap-tabs-enh

Added ability to `yii\bootstrap\Tabs` to encode each `Tabs::items['label']` separately