introducing the api hook cdm_feature_node_blocks_alter and removing hook_cdm_feature_node_blocks_alter, this makes theme_cdm_feature_nodes obsolte, reducing speccial code in palmweb theme
more flexible table of content creation, hook_cdm_feature_node_toc_items_alter() no longer needed
creating hook_cdm_feature_node_toc_items_alter() for palmweb and creating a palmweb module and documentation of api hooks