Update ec_keys for current libsecp256k1, patch context init.
Update ec_keys for current libsecp256k1, patch context init.

GroestlCoin/libgroestlcoin,swansontec/libbitcoin,swansontec/libbitcoin,GroestlCoin/libgroestlcoin,swansontec/libbitcoin,GroestlCoin/libgroestlcoin,swansontec/libbitcoin,GroestlCoin/libgroestlcoin