2.4.18

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
And upgrade dependencies