First (static) component

**Story URL:** [REACT-TASK-2](http://facebook.github.io/react/docs/tutorial.html)
**Project:** React-test
**Reference person:** [me]
**Description:**
First component.

 * [x] Creating component "CommentBox"
 * [x] Render div with "commentBox" class name

**Migrations:** No
**Rollback:** No
**New dependancies:** None
**Manual actions:** None