http://neilj.github.io/Squire/ - Squire
http://www.bootcss.com/p/bootstrap-wysiwyg/ - bootstrap-wysiwyg
http://ueditor.baidu.com/website/umeditor.html - UMeditor
http://www.wangeditor.com/ - wangEditor
http://simditor.tower.im/ - Simditor
http://imperavi.com/redactor/ - Redactor fantastic
https://simplemde.com/ - SimpleMDE Markdown Editor
http://substance.io/examples/ - Substance