New csf v13.07

Changes:

• Added format requirements for ASN entries in CC_* settings
• Removed SSHDSPAM exploit check as it’s no longer critically relevant
• Modifications to support RHEL/CentOS v8
• Modified systemd service to cater for RHEL/CentOS v7.7 pidfile symlink check changes
• Fixes and improvements to UI Ajax code
• Removed legacy bandmin code for cPanel servers and LF_CPANEL_BANDMIN setting
• Modified default InterWorx csf.conf to set SMTP_ALLOWGROUP appropriately for SMTP_BLOCK