added config management. availability defaults to 1 for nodes/subnodes. no_menu_entry is not needed when there's no caption
added config management. availability defaults to 1 for nodes/subnodes. no_menu_entry is not needed when there's no caption

Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode