Added BTCe to exchange_rate.py
Added BTCe to exchange_rate.py

Notice: BTCe uses RUR for RUB, it is not compatible with ISO 4217, so we return it as RUB. Also we use an official mirror because btc-e.com is banned in Russia.

pooler/electrum-ltc,asfin/electrum,dabura667/electrum,fujicoin/electrum-fjc,digitalbitbox/electrum,fyookball/electrum,wakiyamap/electrum-mona,fireduck64/electrum,pooler/electrum-ltc,spesmilo/electrum,dabura667/electrum,romanz/electrum,digitalbitbox/electrum,vertcoin/electrum-vtc,spesmilo/electrum,fireduck64/electrum,pknight007/electrum-vtc,pknight007/electrum-vtc,cryptapus/electrum,fireduck64/electrum,pooler/electrum-ltc,vertcoin/electrum-vtc,wakiyamap/electrum-mona,kyuupichan/electrum,molecular/electrum,digitalbitbox/electrum,fujicoin/electrum-fjc,kyuupichan/electrum,molecular/electrum,vialectrum/vialectrum,fyookball/electrum,wakiyamap/electrum-mona,kyuupichan/electrum,asfin/electrum,pknight007/electrum-vtc,romanz/electrum,spesmilo/electrum,molecular/electrum,neocogent/electrum,vertcoin/electrum-vtc,cryptapus/electrum,vertcoin/electrum-vtc,asfin/electrum,dabura667/electrum,vialectrum/vialectrum,spesmilo/electrum,neocogent/electrum,wakiyamap/electrum-mona,fyookball/electrum,dabura667/electrum,neocogent/electrum,digitalbitbox/electrum,cryptapus/electrum,pknight007/electrum-vtc,fujicoin/electrum-fjc,fireduck64/electrum,romanz/electrum,vialectrum/vialectrum,molecular/electrum,pooler/electrum-ltc