Paragraph: wrap is not used

`Paragraph::wrap()` is not taken into account - also should/could this be an Enum?

Possibly related to #203 maybe it should be:

```
enum Wrap {
    case Word;         // break line on words
    case Character;  // break line on chars
    case None;         // do not break line (i.e. just truncate)
}
```

or should "overflow" be