sksamuel/elastic4s — pull request #123 by jackcviers (2014-03-21 21:43:50+00:00)
Title: Add ability to add parent mappings typed as parent

To add a parent mapping with the dsl, currently it is necessary to
create a special type and field definition. Adding these in will allow
users to use

```scala
client.execute {
create index "myIndex" mappings(
"tags" as (
"tag" typed StringType,
"_parent" typed ParentType("my_parent_document_type")
)
)
}
```