Follows up on HSEARCH-3052 In Progress .

I suspect some assumptions we made on Elasticsearch 2 are no longer valid, like the fact that the default for "indexed" is "false" for some types.

Let's double check the default value of each mapping attribute, and add two tests for each validated attribute: one with an explicit invalid value in the existing schema, and one with an implicit invalid value (default value) in the existing schema.