Install script pull version2 by default, change secp256k1 dep back to master.
Install script pull version2 by default, change secp256k1 dep back to master.

GroestlCoin/libgroestlcoin,libtetcoin/libtetcoin-consensus,GroestlCoin/libgroestlcoin,swansontec/libbitcoin,libtetcoin/libtetcoin-consensus,GroestlCoin/libgroestlcoin,libtetcoin/libtetcoin-consensus,GroestlCoin/libgroestlcoin,libtetcoin/libtetcoin-consensus,swansontec/libbitcoin,libmetrocoin/libmetrocoin-consensus,libtetcoin/libtetcoin-consensus,libmetrocoin/libmetrocoin-consensus,libmetrocoin/libmetrocoin-consensus,swansontec/libbitcoin,libmetrocoin/libmetrocoin-consensus,swansontec/libbitcoin,libmetrocoin/libmetrocoin-consensus