Show NAT domain in message about duplicate network
Added item to "Changes" file.
Ignore leading service: in service name.
Test path between virtual interfaces.
Add tests for simple pathrestrictions.
Moved code out of recursion in cluster_path_mark1.
Optimized handling of pathrestrictions.

Find partitions of cyclic graphs that are separated
by pathrestrictions. This allows faster graph traversal.
When entering a partition, we can already decide,
if end of path is reachable or not.
More tests with pathrestrictions
perlcritic
v3.048

 - Performance improvement: Optimized handling for those pathrestrictions,
   that partition a cyclic subgraph.
 - No longer accept an aggregate in rule that encloses a tunnel or
   some ID hosts.
Merge branch 'master' of https://github.com/hknutzen/Netspoc

Conflicts:
	lib/Netspoc.pm