option for more correct parser

The current implementation parses

```
"a,b",c,d
```

as

``` js
[ '"a', 'b"', 'c', 'd' ]
```

That's not correct but makes the parser faster.

It would be neat if there were an option that instead outputted

``` js
['a,b', 'c', 'd']
```

Maybe `parse({ correct : true })`

Start with the current CSV parser and its parse API, then trace how quoted fields are split. Done means an option such as parse({ correct: true }) returns ['a,b', 'c', 'd'] for the shown input while preserving the existing fast behavior by default.

Written by the indexing model from the issue text.