Replaced pyelasticsearch with elasticsearch-py client, and merged develop
Fix overwritten changes from merge conflict
>.> flake8
Update requirements
Merge branch 'feature/search/elasticsearch-py' of https://github.com/fabianvf/osf into feature/search/elasticsearch-py
Better iteration pattern for dictionaries
Cleaned up imports and removed debug statements
Merge branch 'feature/search/elasticsearch-py' into develop