Added - API documentation for Organisation and OrganisationSet
Fixed - Make `dataset.root` return None if XML is invalid
2.2.1
Fixed - Make multiple modifiers work ([47](https://github.com/codeforIATI/iatikit/issues/47))
2.2.0
Added - Added a dataset xpath filter
Fixed - Allow multiple filters of the same type to be specified ([45](https://github.com/codeforIATI/iatikit/issues/45)) - Prevent looping twice when calling `all()` ([44](https://github.com/codeforIATI/iatikit/issues/44))
Removed - Remove (experimental) fast identifier search
Added - First pass at modelling IATI organisations ([18](https://github.com/codeforIATI/iatikit/issues/18))
2.0.7
Added - First pass at a `humanitarian` activity filter - Add a `iatikit.download.standard()` command - Add an optional `path` argument to `iatikit.data()`