Clean up messages about msg signing/verification.
Clean up messages about msg signing/verification.

Allow translations. Test is_mine before txin_type. Show txin_type in msg.

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