NESCent/dplace — pull request #188 by dleehr (2014-12-05 15:46:08+00:00)
Title: Include language_family in language objects (incl results)

Fixes #164

language_family is now part of the LanguageSerializer. Language JSON objects will look like this:
```json
{
"id": 4,
"iso_code": 4,
"name": "Chenoua",
"language_family": {
"id": 1,
"language_count": 112,
"level": 1,
"name": "Afro-Asiatic",
"parent": null
}
}
```

If we need to add subfamily or subsubfamily, those could be done the same way.