Fix conditional.

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gate.io: fetchOrder exists, but not declared.

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added .fetchOptions to Exchange.js in ES5-compatible mode

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gateio createOrder parsing fix ccxt#3010 fix ccxt#3012

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minor edits

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1.14.116

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removed duplicate parseTrade override, minor edits

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added js/py/php coinbase files merge ccxt#3006 fix ccxt#466

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added new endpoints to ok* family fix ccxt#3002

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skip coinbase in test.js

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