Just pushed up a commit (7911138) to reinstate `$type` for all methods, so that nothing breaks if a plugin written for 1.0 calls one of them. Internally, we no longer use `$type` in `get_taxonomy` (singular), `prepare_taxonomy`, `get_terms`, `get_term`, and `prepare_term`, and `$type` is passed as `null` whenever it needs to be passed to maintain argument order.