2.4.18 final version

Fix multiple commands
Fix issue on null string and on absolute/relative path while all are relative
Fix EndTransfer error (size or hash) not correctly set
Fix CPUlimit handling - False not take into account -
Fix File size in transfer initialization
Fix database initialization
Fix ExecJava implementation - interface break up, but as not used, no issue and not big change -
Add support for MariaDB
Add support for Spooled Directory Transfer
Support for Import of exported logs
Fix support for extended method using JSON format through class as container