rackerlabs/quark — pull request #68 by jmeridth (2014-02-16 00:01:27+00:00)
Title: Extend subnets to allow for nested IPPolicy creation

- ensures IPPolicy fits into Subnet CIDR
- ensures IPPolicy has valid CIDR iteself
- ensures IPPolicy CIDR and inverse of allocation_pools are merged
to create one IPPolicy, since Subnet can only have one associated
to it