Bug 1071272 - Fix oo-admin-repair
Details:
 - Delete unresponsive node(s) from the district in the end
 - Recover app will satisfy group overrides
Bug 1084090: Using as_document instead of serializable_hash to add/remove keys
Merge pull request #5154 from pravisankar/dev/ravi/bug1071272

Merged by openshift-bot
Merge pull request #5165 from abhgupta/abhgupta-dev

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Merge pull request #5166 from danmcp/master

Merged by openshift-bot