allow config to specify security group names as sources for rules
add spec checking equivalence of using group_id vs group_name
minimum coverage of 90%
ensure a hash is being sent to aws api when using group_id
Whoops, missed a require
ensure SecurityGroup.security_groups is private
Merge pull request #4 from sportngin/parse-erb-yaml

Run YAML files through erb
remove unneeded var
Merge pull request #5 from sportngin/allow-group-names

Allow use of group_id or group_name for security group sources
Merge remote-tracking branch 'origin/master' into environments

Conflicts:
	spec/lib/ec2-security-czar/security_group_spec.rb