* port elb_classic_facts to boto3
update module to use AnsibleAWSModule
* Add RETURN docs for elb_classic_lb_facts
* Remove superfluous exception handling around connection
Fix exit_json call and RETURN docs
* Undeprecate ec2_elb_*
* Make ec2_elb* full fledged modules rather than aliases
* Split tests for ec2_elb_lb and elb_classicb_lb
* Change names in documentation of old and new elb modules
Add tests for ec2_elb_lb