Issue #66
Renamed flush_debug_levels_mem_to_db to flush_debug_levels_runtime_to_database
Renamed flush_debug_levels_db_to_mem to flush_debug_levels_database_to_runtime
Issue #66
Implemented the follow commands with regards to debugging, grouped by alias:

LOAD DEBUG TO MEMORY
LOAD DEBUG TO MEM
LOAD DEBUG FROM DISK

SAVE DEBUG FROM MEMORY
SAVE DEBUG FROM MEM
SAVE DEBUG TO DISK

LOAD DEBUG FROM MEMORY
LOAD DEBUG FROM MEM
LOAD DEBUG TO RUNTIME
LOAD DEBUG TO RUN

SAVE DEBUG TO MEMORY
SAVE DEBUG TO MEM
SAVE DEBUG FROM RUNTIME
SAVE DEBUG FROM RUN
Fixed issue #67
Small optimization for issue #66
LOAD/SAVE DEBUG works only if debug is enabled
Further work on issue #66 , solving also issues #12 , #60 and #61

Implemented the follow functions:

LOAD MYSQL USERS TO MEMORY
LOAD MYSQL USERS TO MEM
LOAD MYSQL USERS FROM DISK

SAVE MYSQL USERS FROM MEMORY
SAVE MYSQL USERS FROM MEM
SAVE MYSQL USERS TO DISK

LOAD MYSQL USERS FROM MEMORY
LOAD MYSQL USERS FROM MEM
LOAD MYSQL USERS TO RUNTIME
LOAD MYSQL USERS TO RUN

Prepared the skeleton for follow functions, but the callback function is not implemented yet (issue #13):

SAVE MYSQL USERS TO MEMORY
SAVE MYSQL USERS TO MEM
SAVE MYSQL USERS FROM RUNTIME
SAVE MYSQL USERS FROM RUN