Litecoin: add Kraken and fix ExMoney
Litecoin: add Kraken and fix ExMoney

pknight007/electrum-vtc,pooler/electrum-ltc,vertcoin/electrum-vtc,vialectrum/vialectrum,pooler/electrum-ltc,vertcoin/electrum-vtc,pknight007/electrum-vtc,pknight007/electrum-vtc,vertcoin/electrum-vtc,pooler/electrum-ltc,vialectrum/vialectrum,vertcoin/electrum-vtc,vialectrum/vialectrum,pknight007/electrum-vtc,pooler/electrum-ltc