(#32) Handle unformatted lists

Without this batch the application doesn't handle li and ol where the html is inline:
```html
<ul><li>item1</li><li>item2</li></ul>
```
The returned format outputs above as:
```
* item1* item2
```

This patch allows for unformatted html lists to be displayed as proper markdown:
```
* item1
* item2
```

fixes #32