Warn when inheriting useless router_attributes.
No longer support global:permit.

Use general_permit instead.
Better check for useless general_permit
Better check for pathr. at routers with virtual IP
Indentation.
Warn when inheriting useless NAT definition.
Typo.
Better error message.
Fixed check for auto-interface in intersection.
Admins of owner are optional if extend_only is set
perlcritic
Fixed quotes.
Fixed nondeterminism in warnings of useless NAT.
Added test for owner having only watchers.
v3.055

 - Attribute 'admins' of owner is optional now if 'extend_only' is set.
   But in this case some 'watchers' must be defined.
 - Fixed check for interface and auto-interface together in intersection.
   - Check auto-interface from network as well.
   - No longer reject those interfaces inside a union of values.
 - Fixed check for pathrestriction at group of routers with virtual IP.
   Pathrestriction is allowed now if it applies to all routers of such
   a group.
 - Warn when inheriting useless 'router_attributes' or NAT definitions.
 - Fixed command misc/anonymize to support newer features of Netspoc.