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Changes include:
- 89 - fix python syntax issue in `setup.py` (thanks jwschmo!)

Updated how the StockMarketdata class fetches historical data.

New / Updated functions include:
- `StockMarketdata.historical_quote_by_symbol`
- `StockMarketdata.historical_quote_by_symbols`

Changes include:
- Strategy Vertical: updated shift, premium calculation; added metrics
- Option Order: added `get` endpoint to fetch single option orders
- Client: allow Client to error if hit HTTP 400
- Stock Marketdata: added ability to fetch historical data

Add ability to end pagination early. 59