ENH: Add 'records' outtype to to_dict method.
`to_json` has a records type that turns a DataFrame into a 

```
[{'a': 1, 'b': 3}, {'a': 2, 'b': 4}]
```

records json string.  It'd be nice if you could do a similar thing but not have to go `json.loads`.

grt....can you add a release notes entry (improvements), and a mention in v0.13.0? (use this PR ref as there is not associated issue)
 Updated the commit - let me know of anything else.
 @jtratner @cpcloud any comments?
 @jtratner I updated the test to with your suggestion, seems to have done the trick.
 ok....once more rebase and i think good 2 go (prob just release notes conflict)
 thanks!
 Thanks for the feature!

The resulting list of dicts has NumPy data types in entries, which is unfortunate -- difficult to serialize to JSON with known packages such as json.

Is there a chance to have an option to convert entry types to native Python for this?

Thanks
