Update whitelists and docs according with param renaming

[ReLium]

Updated some docs and white-list according to breaking changes in
https://www.elastic.co/guide/en/elasticsearch/reference/current/breaking-changes-6.6.html#_deprecate_literal__source_exclude_literal_and_literal__source_include_literal_url_parameters

[ReLium]

It is a pretty urgent pull request, as elastic search gives warnings
"Deprecated parameter [_source_include] used, expected [_source_includes] instead",

but it is impossible to change parameter in request, because client gives exception "Used params out of whitelist"

[ReLium]

BTW,

1. I signed CLA, but it still failed.
2. Integration tests fail is not related to my changes

[ezimuel]

@ReLium I just checked the CLA and it's ok, don't worry. The integration test are ok now, I fixed it until ES 6.5. I'm planning to release a 6.5 release soon and I'll merge this PR for 6.7. More details will come.
Thanks for your contribution!

[ezimuel]

I'm closing this in favor of #882. We don't need to remove the old parameter names _source_exclude and _source_include they are only deprecated, people should be able to continue to use it.