`select()` with nested keys issue

When using the `select()` method with nested keys (i.e.: `key1.key2`) `key1` needs to be included automatically.

ex:

```
let query = new Parse.Query("MyObject");
query.select("key.key2");
// does not work
```

```
let query = new Parse.Query("MyObject");
query.include("key");
query.select("key.key2");
// works!
```