0.6.2

• Refactored GitHub component (@hiqsol)
• Added phpstan (@hiqsol)
• Allowed Yii2 3.0 (@SilverFire)
• Enhanced ConsoleTarget (@SilverFire, @hiqsol)
• Added Yii 2.1 compatibility (@hiqsol, @SilverFire)
• Fixed stopping at error (@hiqsol)