Affects Version/s: None
Fix Version/s: None
AWS elastic IP addresses for VPC work a tad differently than EC2.
Add a new class EC2ElasticIpAddress which will store all attributes listed in the documentation: http://docs.aws.amazon.com/AWSEC2/latest/CommandLineReference/ApiReference-cmd-DescribeAddresses.html.
Update ex_describe_addresses to return a list of EC2ElasticIpAddress objects
Update ex_release_address to include the allocation id as a keyword argument. This is required to release a VPC address.
Update ex_allocate_address with a domain keyword argument to support allocating addresses within VPCs.
Update ex_disassociate_address with a association_id keyword argument to support disassociating VPC addresses from an instance inside of a VPC network.