Fix test execution path and change build dir name.
Fix test execution path and change build dir name.

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