rdb_compat: added :use_connection_pooling flag. users can configure use of connection pooling to access database. the flag is, by default, false. if config has :sslca value, it is true.
rdb_compat: added :use_connection_pooling flag. users can configure use of connection pooling to access database. the flag is, by default, false. if config has :sslca value, it is true.

treasure-data/perfectqueue