Where can I find a lightweight WYSIWYG editor?

Question

JavaScript

I need an editor. Requirements:
1) bold
2) italic
3) color
4) different centering
The language is pure JavaScript, perhaps JQuery.
The editor should work on iPad and mobile browsers.
The less weight the better. What is relevant in 2014?

Answer 1

Recently used in a project - Quill
Handy, lightweight and well documented.

Answer 2

Redactor , costs - 99 bucks)

Answer 3

Check out these
aloha-editor.org
raptor-editor.com
editor.froala.com