PHP: Exchange: has method

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1.10.737

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eslint: more no-empty-line rules, space for func call

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ci retrigger

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ci retrigger (pypi legacy url fails too often)

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made the amount optional in poloniex editOrder

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added json-decoding protection against python failures to okcoinusd c…

…cxt#1142 ccxt#1250

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1.10.731

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bitfinex hasCreateOrder → false ccxt#1266

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more fixes to bittrex handleErrors overriding default 429 handler ccx…

…t#1284

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