haproxy-devel, sticky options, automated floating-rule generation, easy stats page, HSTS option

-options for stick-table/cookie session persistence
-automated floating pf rule for transparent proxy backends
-stats tab for easy stats access and a 'template' to automatically configure an example
-option for "HTTP Strict Transport Security"
-installation 'diagnostics' as it has been reported to hang sometimes on haproxy_custom_php_install_command()
-warning added for transparent-clientip option as it may interfere with other services / traffic.