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
setup scalr version 4.1.0
upgrade to scalr 4.4.0
serve scalr on VIP port 9999 as well
use 8 hex digits as scalr id, as per scalr folks