avoid to log captive daemon iptables error unless debug is enabled
up changelog
fixed chlog
Merge branch '3.2' into captiveportal-silent-root

Conflicts:
	main/captiveportal/ChangeLog
Merge branch 'jag/captiveportal-silent-root' into 3.2
Merge branch '3.2' into 3.3

Conflicts:
	main/captiveportal/src/EBox/CaptiveDaemon.pm