Ton-client-py

- Binaries updated to `1.21.5`;
- Changes `1.21.3` (https://github.com/tonlabs/TON-SDK/blob/master/CHANGELOG.md#1213--2021-09-02);
- Changes `1.21.4` (https://github.com/tonlabs/TON-SDK/blob/master/CHANGELOG.md#1214--2021-09-08);
- Changes `1.21.5` (https://github.com/tonlabs/TON-SDK/blob/master/CHANGELOG.md#1215--2021-09-13);

- Binaries updated to `1.21.2`;
- Changes `1.21.0` (https://github.com/tonlabs/TON-SDK/blob/master/CHANGELOG.md#1210--2021-08-18);
- Changes `1.21.1` (https://github.com/tonlabs/TON-SDK/blob/master/CHANGELOG.md#1211--2021-08-24);
- Changes `1.21.2` (https://github.com/tonlabs/TON-SDK/blob/master/CHANGELOG.md#1212--2021-08-25);

- Binaries updated to `1.20.1`;
- Changes `1.20.1` (https://github.com/tonlabs/TON-SDK/blob/master/CHANGELOG.md#1201--2021-07-30);

- Binaries updated to `1.20.0`;
- Changes `1.20.0` (https://github.com/tonlabs/TON-SDK/blob/master/CHANGELOG.md#1200--2021-07-16);

- Binaries updated to `1.19.0`;
- Changes `1.19.0` (https://github.com/tonlabs/TON-SDK/blob/master/CHANGELOG.md#1190--2021-07-07);
- `TonException` object improved:
- Now exception object has `client_error: ClientError` attribute.
All `ClientError` attributes are available, e.g. `e.client_error.code`;
- `module` attribute added to error `client_error` attribute.
You can check error module, e.g. `e.client_error.module == ClientErrorCode`.
All error modules names can be found in `tonclient.types.*ErrorCode`.

- Binaries updated to `1.18.0`;
- Changes `1.18.0` (https://github.com/tonlabs/TON-SDK/blob/master/CHANGELOG.md#1180--2021-06-26);
- **Note: Possible breaking**

python
tonclient/client.py

DEVNET_BASE_URL = 'net.ton.dev' changed to
DEVNET_BASE_URLS = [
'https://net1.ton.dev/',
'https://net5.ton.dev/'
]

MAINNET_BASE_URL = 'main.ton.dev' changed to
MAINNET_BASE_URLS = [
'https://main2.ton.dev/',
'https://main3.ton.dev/',
'https://main4.ton.dev/'
]


If you are using `DEVNET_BASE_URL` or `MAINNET_BASE_URL` somewhere, please set/update
your client `NetworkConfig.endpoints` with new set of urls.