New cxs v6.11

Changes:

• Ensure all file opens are properly flocked
• Switch to using require instead of eval/use to load runtime modules where possible
• Code review – started addressing perl critic suggestions in all scripts and modules
• Fixed incorrect –summary when subdomains outside of public_html while using –www
• Memory and CPU optimisations
• PHP script decoding up to 15% faster
• PHP fingerprint regex matching up to 50% faster
• postftpup converted to a cPanel Hook
• Exploit fingerprint definitions database additions