deleted:    tests/res/_cache/jopi/linker/ClassGenerator.php
	deleted:    tests/res/_cache/jopi/linker/IsEventListener.php
	deleted:    tests/res/_cache/jopi/linker/IsLibrary.php
	deleted:    tests/res/_cache/jopi/linker/Library.php
	deleted:    tests/res/_cache/jopi/linker/LinkerLibrary.php
	modified:   class/jopi/linker/ConfigManager.php
	modified:   class/jopi/linker/ConfigSet.php
	modified:   class/jopi/linker/Event.php
	modified:   class/jopi/linker/IsLibrary.php
        modified:   class/jopi/linker/Library.php
	modified:   class/jopi/linker/LibraryManager.php
	modified:   class/jopi/linker/LinkerConfig.php
Add some help functions.