ACL getActions consistency improvements for all components

This commit will improve the consistent use of the ACL API across the Joomla components. It also removes the level part of the getActions check for certain components. You want to have all component actions and not just of the specific section, and the component should contain all actions of the other sections of access.xml. Otherwise you might not be able to check for core.manage action to show the permission settings fieldset in an different section for example.