fix conf loading for linux.
fix conf loading for linux.

tuomassiren/libbitcoin-explorer,GroestlCoin/libgroestlcoin-explorer,GroestlCoin/libgroestlcoin-explorer,libmetrocoin/libmetrocoin-explorer,libtetcoin/libtetcoin-explorer,cancoin/libbitcoin-explorer,BWallet/sx,BWallet/sx,BWallet/sx,tuomassiren/libbitcoin-explorer,libtetcoin/libtetcoin-explorer,GroestlCoin/libgroestlcoin-explorer,cancoin/libbitcoin-explorer,libmetrocoin/libmetrocoin-explorer