New MailScanner Script v2.46

Changes:

• Modified installer script to change the exim system_filter to an empty file (/etc/antivirus.empty) instead of periodically emptying /etc/antivirus.exim
• Modified installer script to check for existence, ownership and permissions on the spool directories on upgrade
• Modified installer script to cleanly stop and start MailScanner without Failed messages
• Latest MailSCanner v4.56.8
• Modified installer script to offer second option for new installations to skip forced perl module installation
• Fixed bug in the MailScanner distribution where the MailScanner.conf update script isn’t chmod executable