Control statements based on the if and elseif constructs must have a single space before the opening parenthesis of the conditional and a single space after the closing parenthesis.

Moved Application::$controllerNamespace init into variable declaration, reordered Module::__construct.

This reverts commit 6b15768a.

To prevent Warning "Trying to get property of non-object" in case when nothing set to params, but you try to get some key (check is there something)

ArrayHelper::getValue($this->view->params, 'abc');

consistent api for safe and required

when error occurs while handling errors output was not readable in web
context

adjust depended asset position or throw exception on conflict