Added missing return statements for perlcritic.
v3.060

 - Added support for setting log severity.
   Logging is changed by a combination of attributes at rules and devices.
   Define one or more lines "log:<tag> = <severity>" at devices,
   where logging should be enabled or changed.
   - <tag> is some valid identifier.
   - <severity> is one of
     alerts|critical|debugging|disable|emergencies|
     errors|informational|notifications|warnings
   Define attribute "log = <tag1>, ...;" at each rule that needs
   changed logging. A rule with logging for <tag1> is logged at each device,
   where a matching "log:<tag1>" is defined.
   Severity names correspond to well known UNIX log severities.
   'disable' disables logging at devices of type ASA and PIX.
 - Added new router type "managed = routing_only".
   This will generate only static routes and no ACLs.
   A device with "routing_only" doesn't split a security zone.
   Rules with only a routes_only device in between are ignored with
   warning "Unenforceable rule".
   Hence, for traffic inside a security zone no static routes are generated.
   These have to be added manually in file "raw/<device>".