Transmission-rpc

:bug: Bug Fixes
- [`cf9d73c`](https://github.com/trim21/transmission-rpc/commit/cf9d73c9722d6cd7a91c4338fb1182ae09571b07) - type of Torrent.download_dir *(commit by trim21)*
- [`58ac7c4`](https://github.com/trim21/transmission-rpc/commit/58ac7c4f6289219b3a5a9ae342fe336cb17e8b30) - **types**: `session.units` should return a object instead of dict *(commit by trim21)*

:bug: Bug Fixes
- [`240aa1b`](https://github.com/trim21/transmission-rpc/commit/240aa1b09f64589cdd64e9fb0362749a5ec0f66c) - **client**: `client.get_groups()`, `client.get_group()`, `client.set_group()` *(commit by trim21)*

:bug: Bug Fixes
- [`7726fd0`](https://github.com/trim21/transmission-rpc/commit/7726fd0fb24b7c9796e03cbb88f7be312adbea3c) - **client**: 'Invalid tracker list' error when passing `tracker_list` argument to method `Client.change_torrent` *(commit by trim21)*

:bug: Bug Fixes
- [`5943c34`](https://github.com/trim21/transmission-rpc/commit/5943c34feb44191bddb8331bad7c9d5b002b2f12) - **types**: `Torrent.labels` should be list of str *(PR #348 by jelly)*

This version doesn't change any code, only to trigger readthedocs to build latest docs.

if you didn't see any `DeprecationWarning` when you are using 6.0.0, it's safe to upgrade to this version.

BREAKING CHANGES:

some deprecated properties and methods are removed:
- `client.locate_torrent_data`, use `client.move_torrent_data(move=False)` instread.
- `torrent.seedRatioLimit`, use `.seed_ratio_limit` instead.
- `torrent.seedRatioLimited`, use `.seed_ratio_limited` instead.
- `torrent.files`, use `torrent.get_files()` instead.
- `torrent.date_active`, use `torrent.activity_date` instread.
- `torrent.date_added`, use `torrent.added_date` instread.
- `torrent.date_started`, use `torrent.start_date` instread.
- `torrent.date_done`, use `torrent.done_date` instread.