Fixed/changed implementation of toString() to allow for empty lists
Fixed/changed implementation of toString() to allow for empty lists

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