Tests:
Our ability to "edit around" content the HTML editing code does not yet handle very well.
For this test: Test typing at the end of a list.
Expected Results:
The content in the red box must exactly match the content in the green box (except for the border color).
For this test: Typed text should appear after (on the line below) the list.

- line one
- line two
- line threexxx

- line one
- line two
- line three