Adding weight for issue #69
For issue #66:
New commands implemented:
SAVE MYSQL SERVERS TO MEMORY
SAVE MYSQL SERVERS TO MEM
SAVE MYSQL SERVERS FROM RUNTIME
SAVE MYSQL SERVERS FROM RUN
LOAD MYSQL SERVERS FROM MEMORY
LOAD MYSQL SERVERS FROM MEM
LOAD MYSQL SERVERS TO RUNTIME
LOAD MYSQL SERVERS TO RUN
LOAD MYSQL SERVERS TO MEMORY
LOAD MYSQL SERVERS TO MEM
LOAD MYSQL SERVERS FROM DISK

For issue #18:
Implemented functions:
Standard_ProxySQL_Admin::flush_mysql_servers__from_disk_to_memory()
Standard_ProxySQL_Admin::flush_mysql_servers__from_memory_to_disk()
Standard_ProxySQL_Admin::load_mysql_servers_to_runtime()

For issue #70:
Removed any 127.0.0.1 from main()
Fixed small bug introduced in issue #69
Fixed bug #75

Fixed bug #74

Started working on issue #71
In class MySQL_HostGroups_Handler, MyHostGroups and Servers were converted from vectors to PtrArray
Fixed bug #76 and issue #77