setup.py: rm deprecated 'imp'. dedupe min py version
setup.py: rm deprecated 'imp'. dedupe min py version

cryptapus/electrum,neocogent/electrum,neocogent/electrum,fujicoin/electrum-fjc,spesmilo/electrum,vialectrum/vialectrum,spesmilo/electrum,vialectrum/vialectrum,spesmilo/electrum,cryptapus/electrum,pooler/electrum-ltc,wakiyamap/electrum-mona,pooler/electrum-ltc,vialectrum/vialectrum,neocogent/electrum,fujicoin/electrum-fjc,wakiyamap/electrum-mona,cryptapus/electrum,wakiyamap/electrum-mona,spesmilo/electrum,wakiyamap/electrum-mona,pooler/electrum-ltc,pooler/electrum-ltc,fujicoin/electrum-fjc