Comprehensive feature set and improved reliability

[wboayue]

This release marks the first feature-complete version of the API. It incorporates community feedback and insights from building an automated trading system to create a more robust and user-friendly API that now achieves feature parity with the official API.

Due to substantial refactoring, there are some breaking changes, but the resulting code should be easier to maintain. Here’s an overview of key enhancements:

• Subscriptions Instead of Iterators:
Rather than returning an iterator of streamed responses, the concept of a Subscription was introduced. In simple cases, a subscription can be converted into a blocking iterator. Subscriptions also provide applications with added flexibility, enabling iteration over items with a timeout or in a non-blocking fashion.
• Improved Connection Handling:
The Client now detects disconnections from the TWS server and automatically attempts to reconnect using a Fibonacci backoff strategy. If reconnection attempts ultimately fail, an error is returned to the application.
• Thread Safety:
The Client and underlying code are now thread-safe. However, the recommended model remains one client per thread for optimal correctness.

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