processed_data can be of various types (df, dict, list of dicts;

so that it now uses logic in the core, used to automatic populate the
field when the AKA is solved in the first place

ETL tasks for importing areas, areas variations and orgs refactored;
minint ETL tasks refactored to use the latest ETL api (ETL + transformation)

empty gitlab-ci created to try to stop the autodevops pipeline invocations

See merge request !3

Release 1.1.0

See merge request !2

ETL class can now be instantiated; Transformation base class will now be responsible for transform operations; backcompatibility ensured
Bump version: 1.0.0 → 1.1.0

This loader is slower than DjangoBulkLoader, but it's idempotent.
Useful for recurring ETL tasks.

This avoids misleading logging messages in case of exception.

ETL tests implemented