Fix 2.4.19

Fix Submit command by testing if the client is really connected to the database (affect also SpooledDirectoryTransfer)
Improve File size checking in start of request
Add check on available space if receive operation
Add deny of service check - temptative to send same block over and over, to send more data than file size -
Add Restart support in Shutdown operation
Add restart capability both in admin and tasks in order to allow remote upgrade procedure
Fix Database access when using configuration with Database support
Small fix on path setup in move/copy tasks
Add first step of internationalization support through -Dopenr66.locale=en|fr
Add option -dos2unix -unix2dos to TRANSCODE task
Fix File getBasename
Fix self request handling when using Database connexion
Add support to limit log of startup with option -Dopenr66.startup.warning=0