adding new application loadbalancer objects and properties, following AWS announcement https://a…

[axelpavageau]

https://aws.amazon.com/blogs/aws/new-aws-application-load-balancer/

[philtay]

Please also add the TargetGroupARNs property to AWS::AutoScaling::AutoScalingGroup in order to complete this PR as per August 11, 2016 CloudFormation release. Thanks a lot!

[philtay]

Also note that I have created a separated module for AWS::ApplicationAutoScaling. I mean, now in troposphere we have both autoscaling and applicationautoscaling modules. This PR, instead, includes both AWS::ElasticLoadBalancingV2 and AWS::ElasticLoadBalancing in the same module. The natural name of the class for AWS::ElasticLoadBalancingV2::LoadBalancer would be LoadBalancer but you had to name it ApplicationLoadBalancer in order to avoid clashing with the already existing AWS::ElasticLoadBalancing::LoadBalancer. Basically I suggest to use separate modules for these resources too, but I think it's up to @markpeek to decide. I'm ready to merge autoscaling and applicationautoscaling if Mark wants me to.

[axelpavageau]

You're right, it makes more sense to create a separate module. I hesitated between both options and went for a single module, but after a bit of sleep your way seems better.
The object's names will be more consistent with AWS'.
I'll correct my PR

[philtay]

LGTM

[ntwaddell]

Awesome, thanks for getting this added so quickly. :D

[markpeek]

Thanks! Appreciate the rework and adding the example.

[mitesh9875]

Hi,
I have not get any example to setup application ELB, please share example for application loadbalancer.

[phobologic]

@mitesh9875 The example troposphere code and the resulting cloudformation template are both included in this pull request. You can find them in the examples directory as well.

https://github.com/cloudtools/troposphere/blob/master/examples/ApplicationELB.py