Summernote
From LimeSurvey Manual
Benefits
- Bootstrap ready
- Have a system for image http://summernote.org/#/features#callbacks-onImageUpload
- i18n : http://summernote.org/#/features#i18n
- MIT license
constraint
- Not find a Plugin for own_menu system actually : http://hackerwins.github.io/summernote/features.html#customtoolbar