[WebDriver] deletes all cookies after tests when restart is false
yii2 module updated
Merge pull request #846 from Ragazzo/yii2_features_ported

yii2 module updated
codecoverage usage changed. Cookies are set before test.
dev version started
Merge branch '1.8' of github.com:Codeception/Codeception into 1.8
Laravel 4.1 improvements and database methods