added new logic to populate routes properly instead of lumping as gateway

Ref #757
autoscaling bug fix and changes

- Fix bad null check (zoneId instead of loadBalancerId) Ref #614
- Removed vlan (wrong) in favor of subnetIds (correct) - comma
seperated list from AWS - Ref #779
support for comma seperated string for subnetIds for autoscalinggroups

see
http://docs.aws.amazon.com/AutoScaling/latest/APIReference/API_CreateAut
oScalingGroup.html - reference "VPCZoneIdentifier"
Ref #779
Merge pull request #21 from TheWeatherCompany/twc_dev

Twc dev