skipping hitbtc2 on travis for now

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kuna fetch_my_trades signature fix ccxt#361

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php method declaration compatible with base class warning fix ccxt#361

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more edits to coinmarketcap parseTicker

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more edits to coinmarketcap parseTicker

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fixes to coinmarketcap fetchTickers

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added coinmarketcap basic error handling

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binance lower rateLimit to 500ms

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bittrex lot size fix

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transpiled to php and python ccxt#541

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