add some missing metamodel data (still a lot missing tho)
add some missing metamodel data (still a lot missing tho)

ceylon/ceylon.language,unratito/ceylon.language,jvasileff/ceylon.language,lucaswerkmeister/ceylon.language,lucaswerkmeister/ceylon.language,jvasileff/ceylon.language,unratito/ceylon.language,ceylon/ceylon.language