Vaadin wrapper for umeditor(https://github.com/campaign/umeditor). umeditor is the mini version of ueditor(http://ueditor.baidu.com/website/), which is a versatile rich text editor. umeditor has been used in http://tieba.baidu.com, and has proven to be an efficient editor. umeditor-vaadin-js dependends on umeditor-fragment(https://github.com/luyanfei/umeditor-fragment)