* Fix bug, method init must be protected
* Added phpstan level 0
* Added exclusions
* Fix: incorrect case in Twig_SimpleFunction
* Fix, no abstract properties, if properties used in methods let's set them
* Fixed Psr\SimpleCache\InvalidArgumentException referenced with incorrect case
* added exclusions
* Fixed: Access to an undefined property Grav\Framework\Form\FormFlash::$uploadObjects.
* Fixed: does not call parent constructor from Grav\Common\Iterator.
* Fixed: does not call parent constructor from Grav\Common\Iterator.
* Fixed: does not call parent constructor
* Fixed: does not call parent constructor
* Minor: correct type for inflector
* Moved phpstan.neon out of public directory
* Added exclusion
* set GRAV_USER_INSTANCE to prevent LogiException in User
* Exlude Stream:create
* Minor: Missing storage property
* Minor: Fixed missing properties (phpstan level 1)
* Added type for $data
* Minor: Ensure $langs is initialized
* Fix possible bug in $http_response_header status code retrieval (PHP 7.1 only)
* Added exclusion for $http_response_header (isset is actually not required)
* Strict null check
