Reduce monitoring nu

Until a better monitoring is found, reduce the load on mysql.
Added DNS records for the hypervisor float interface
Fixed white space
Merge pull request #102 from caiush/float_dns_records

Float dns records
Merge pull request #101 from caiush/zabbix_update_freq

Reduce monitoring freq and metric retention
Remove per-tenancy NS records. Closes #108.
Merge pull request #109 from dspadea/ghi108_remove_extra_ns_records

Remove per-tenancy NS records.
include new key used for flunetd package signing
workaround for newer version of rabbit that limits to localhost only
initial pass at anycast support across headnodes
routing fixes for hypervisor's via mgmt and VMs via float net
enable ospf routes on all worker nodes too
rearranging order of some rules for clarity
remove stale routes before adding new ones