News: Find out if we trimmed inside a bold tag.

@moollaza @nilnilnil 

Close it if we did:

```javascript
>>> ddg_spice_news.ellipsis("US President Barack <b>Obama said</b> Tuesday.", 40)
"US President Barack <b>Obama said</b> ..."
>>> ddg_spice_news.ellipsis("US President Barack <b>Obama said</b> Tuesday.", 35)
"US President Barack <b>Obama</b> ..."
```