fixed minor regression in logfile selection; added support for stdout
fixed minor regression in logfile selection; added support for stdout

Tetchain/tetchaind,Reddcraft/reddcraftd,F483/counterparty-lib,stefcrypto/counterparty-lib,tokenly/counterparty-lib,coinwarp/dogeparty-lib,Ziftr/counterpartyd,monaparty/counterparty-lib,Litetokens/litetokensd,Paytokens/paytokensd,Ziftr/counterpartyd,Dogeparty/dogepartyd,metronotes-beta/metronotesd,Bluejudy/bluejudyd,Metronote/metronotesd-alpha,ClearingHouse/clearinghoused,CounterpartyXCP/counterparty-lib,gotcha/testcounter,CounterpartyXCP/counterparty-lib,Dogeparty/dogepartyd,ClearingHouse/clearinghoused,paytokens-beta/paytokensd,Czarparty/czarpartyd,Peertokens/peertokensd,F483/counterparty-lib,patricklodder/dogepartyd,Bluejudy/bluejudyd,monaparty/counterparty-lib,jarymoth/counterpartyd,Reddcraft/reddcraftd,Tetchain/tetchaind