Bugfix: capture this_ptr in lambdas
Bugfix: capture this_ptr in lambdas

kaostao/libbitcoin,libtetcoin/libtetcoin-consensus,BWallet/libbitcoin,Airbitz/libbitcoin,libtetcoin/libtetcoin-consensus,libmetrocoin/libmetrocoin-consensus,swansontec/libbitcoin,swansontec/libbitcoin,libtetcoin/libtetcoin-consensus,libmetrocoin/libmetrocoin-consensus,GroestlCoin/libgroestlcoin,swansontec/libbitcoin,swansontec/libbitcoin,GroestlCoin/libgroestlcoin,kaostao/libbitcoin,libmetrocoin/libmetrocoin-consensus,kaostao/libbitcoin,BWallet/libbitcoin,GroestlCoin/libgroestlcoin,Airbitz/libbitcoin,libmetrocoin/libmetrocoin-consensus,Airbitz/libbitcoin,libtetcoin/libtetcoin-consensus,Airbitz/libbitcoin,kaostao/libbitcoin,libtetcoin/libtetcoin-consensus,BWallet/libbitcoin,GroestlCoin/libgroestlcoin,libmetrocoin/libmetrocoin-consensus,BWallet/libbitcoin