message: fix problem with rethinkdb
diff: @@ -242,6 +242,8 @@ module.exports = class ConnectionGenerator extends Generator {
  if (connection) {
  if (connection.connection){
  setProps({ connectionString:connection.connection });
  + } else if (database === 'rethinkdb' && connection.db) {
  + setProps({ connectionString:`rethinkdb://${connection.servers[0].host}:${connection.servers[0].port}/${connection.db}` });
  } else {
  setProps({ connectionString:connection });
  }
  