Out of date GDS dictionary

[matteosantama]

When I try to run GDS I get the following error,

12:30:33 PRODUCER.1 | INFO:emerald-havoc-producer:['BITSTAMP_BTC_USD', 'COINBASE_BTC_USD', 'GEMINI_BTC_USD'] 12:30:33 PRODUCER.1 | Traceback (most recent call last): 12:30:33 PRODUCER.1 | File "runt.py", line 80, in <module> 12:30:33 PRODUCER.1 | main() 12:30:33 PRODUCER.1 | File "runt.py", line 68, in main 12:30:33 PRODUCER.1 | TradesPollTask(exchanges=non_orderbook_exchanges).start_task() 12:30:33 PRODUCER.1 | File "/home/matteo/Desktop/gryphon/gryphon/data_service/trades_poll_task.py", line 33, in __init__ 12:30:33 PRODUCER.1 | self.pollers = [exchange_pollers[ex] for ex in exchanges] 12:30:33 PRODUCER.1 | KeyError: 'GEMINI_BTC_USD'

When I checked the code in trades_poll_task.py, it looks like the dictionary contains the key 'GEMINI' but not 'GEMINI_BTC_USD'. I'm not sure if the fix is as simple as updating the key.

[garethdmm]

The cause of this is a dictionary with exchange keys in gryphon/data_service/trades_poll_task.py that needs updating. Should be a simple fix if anyone wants to take it on.