select default option if none specified
select default option if none specified

fixes #901

quilljs/quill,voxmedia/quill,sferoze/quilljs,willrowe/quill,willrowe/quill,quilljs/quill,sferoze/quilljs,voxmedia/quill,willrowe/quill,quilljs/quill,voxmedia/quill,sferoze/quilljs,sferoze/quilljs