Python-binance-fixed

^^^^^^^^^^
**Changed**
- Stock json lib to ujson (https://github.com/sammchardy/python-binance/pull/383)

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**Added**

- symbol book ticker websocket streams
- margin websocket stream

**Updated**

- can call Client without any params
- make response a property of the Client class so you can access response properties after a request

**Fixed**

- issue with None value params causing errors

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**Added**

- sub account endpoints
- dust transfer endpoint
- asset divident history endpoint

**Removed**

- deprecated withdraw fee endpoint

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**Added**

- margin trading endpoints

**Fixed**

- depth cache clearing bug

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**Added**

- limit param to DepthCacheManager
- limit param to get_historical_klines
- update_time to DepthCache class

**Updated**

- test coverage

**Fixed**

- super init in Websocket class
- removal of request params from signature
- empty set issue in aggregate_trade_iter

^^^^^^^^^^^^^^^^^^^

**Added**

- get_asset_details endpoint
- get_dust_log endpoint
- get_trade_fee endpoint
- ability for multiple DepthCacheManagers to share a BinanceSocketManager
- get_historial_klines_generator function
- custom socket timeout param for BinanceSocketManager

**Updated**

- general dependency version
- removed support for python3.3

**Fixed**

- add a super init on BinanceClientProtocol