* task/naderman/config-class:
[task/config-class] Do not create multiple cache driver instances.
[task/config-class] Add an attribute for the table name in phpbb_config_db.
[task/config-class] Correctly merge cached config with dynamically loaded data.
[task/config-class] Always specify the config table to use.
[task/config-class] Fix db config constructor param order
[task/config-class] Implemented a config class to replace the global array.