…jection over Container. Includes changes from PRsymfony#8985

… javiereguiluz)This PR was merged into the 4.0 branch.Discussion----------Removed invalid examplesTemplating isn't a service in Symfony 4+ (even after `composer req templating`), so probably we're looking for the twig service.The Router service isn't public and can therefor not be called from the container:```$ php bin/console debug:container router // This service is an alias for the service router.defaultInformation for Service "router.default"======================================== ---------------- -----------------------------------------------  Option           Value ---------------- -----------------------------------------------  Service ID       router.default  Class            Symfony\Bundle\FrameworkBundle\Routing\Router  Tags             -  Calls            setConfigCacheFactory  Public           no  Synthetic        no  Lazy             no  Shared           yes  Abstract         no  Autowired        no  Autoconfigured   no ---------------- -----------------------------------------------```Commits-------3492028 Use controller method injection instead of the constructorf9091b0 Updated documentation to reflect best practice of using Dependency Injection over Container. Includes changes from PR#898518e6d9e Removed "Accessing the Container Directly"89e38ef Removed invalid examples

* 4.0:  Update collection.rst  Mention that PSR-1 doesn't recommend CamelCase or anything else  Fixed the XML and PHP config instead of the YAML config  Use controller method injection instead of the constructor  Add missing references  Updated documentation to reflect best practice of using Dependency Injection over Container. Includes changes from PRsymfony#8985  Removed "Accessing the Container Directly"  minorsymfony#8091 Update js-datepicker usage for new jQuery UI (AdrianBorodziuk, javiereguiluz)  minorsymfony#8983 cross-reference console command testing from testing guide (dbu)  Fix YAML config bug  Removed invalid examples  commands are automatically registered in symfony full stack  update forms.rst