Migration from PostgreSQL to Elasticsearch

* migration status saved into Elasticsearch
* tox handled for migration
* JSON field added into migration
* reports tests moved into migration
* migration run script implemented
* manager for migration run implemented
* production wsgi application added for collector
* logging error in collector fixed
* installation struct model and table renamed

Change-Id: I001010a13f4798505b4d806728b3376da57c90fb
Blueprint: send-anon-usage