Fixed it.
PhpCMSng\Content\MenuDataParser\MenuLevel
* getActMenuLevel() minor enhancement
PhpCMSng\Template\MenuTemplateParser
* _addLine() better empty line handling, when no MenuTemplate is defined!
PhpCMSng\Renderer\MenuTemplateRenderer
* _renderPart() render submenus enhanced
PhpCMSng\Core\Parser
* FIX: Namspace corrections for some use Statements
* _merge() uses now the renderer!
PhpCMSng\Content\TagHandler
* _initPluginDir() add static default