Android: make RBF on by default
Android: make RBF on by default

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