* Port ec2_vpc_net to boto3 and add support to expand existing VPCs
* Add s-hertel as an author for ec2_vpc_net
* Update ec2_vpc_net test for new error triggered by lack of credentials
Fix backwards compatibility
Document new return value
* Fix pep8 and return documentation
* Add some integration tests for ec2_vpc_net module
* Add a couple tests for check mode
fix typo
ensure the DHCP option set is cleaned up
* Add permissions to test policy