Added
- Add an IATI schema downloader
- Add IATI schema validation
- Add a fast find activity search ([3](https://github.com/pwyf/pyandi/issues/3))
- Add `CodelistItem` and `Sector` comparison methods
- Add a `dataset.schema` method
- Make `download.codelists()` download codelist mappings, too
- Add a `CodelistMappings` class; Add codelist validation
- Add a `Validator` class, for storing the results of validation
- Remove `path` args from lots of constructors; use pyandi.ini instead ([31](https://github.com/pwyf/pyandi/issues/31))
Fixed
- Lots of pylint-related fixes
- Add missing _instance_class to `PublisherSet`
- Don’t patch `os.path.join` in tests ([32](https://github.com/pwyf/pyandi/issues/32))
Changed
- Don’t instantiate schemas – use static classes instead
Removed
- Remove download helpers (they’re not really useful)