Migrated to 3.2 #5336

Also, Flake8ified
Release version 3.0.1.0
Merge branch 'release/3.0.1.0' into develop
Merge migration to 3.2
Accept multiple servers as ES backend
Merge pull request #7 from sharoonthomas/develop

Accept multiple servers as ES backend
Add batching of records when indexing #5465
Merge pull request #8 from sharoonthomas/develop

Add batching of records when indexing #5465
Release version 3.2.0.2
Merge branch 'release/3.2.0.2' into develop
Optimize to reduce database hits
Merge pull request #9 from sharoonthomas/develop

Optimize to reduce database hits
Release version 3.2.0.3
Merge branch 'release/3.2.0.3' into develop
Handle NotFoundException safely
Merge pull request #10 from sharoonthomas/develop

Handle NotFoundException safely
Set default indices while creating connection