idea for prepared statement api

client-idea.js

client.parse('statementName', 'select * from boom where name = $1', Æ(err, statement) {
  if(err) {
    //do something
  }
  statement.bind('portalName', ['_alex'], Æ(err, portal) {
    if(err) {
      //do something
    }
    portal.execute(10, Æ(err, row) {
      if(err) {
        //do something
      }
      console.log(row.name);
    });
  })
});