Update zone-serial only on changing zone-records
Cleanup code of zone-serial feature
Errors found through tests are corrected
adding tests for dns::zone
fix test
Merge remote-tracking branch 'upstream/master' into zone-serial-sed

Conflicts:
	manifests/zone.pp
	spec/defines/dns_zone_spec.rb
fix test after master merge
fix variable ::server::options::forwarder in zone.pp
Merge pull request #45 from kubashin-a/zone-serial-sed

Update zone-serial only on changing zone-records (sed version)