examples: typo

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1.13.93

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fix appveyor

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1.13.91

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added a clarifying comment to kraken leveraged order example

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cryptopia request refix ccxt#2765

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gateio: fetchMarkets: precision

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restored previous kraken fetchMyTrades (wip) ccxt#2746

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bitfinex fetchOHLCV limit and since workaround fix ccxt#2757

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added status = 3 = 'open' (canceling) to okex/okcoinusd

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