fog/fog — pull request #976 by atbell (2012-06-12 23:02:47+00:00)
Title: Updated create_load_balancer to support internal ELBs 

Amazon recently introduced support to [create internal ELBs in a VPC](http://aws.typepad.com/aws/2012/06/internal-elastic-load-balancers.html). These changes enable fog to do the same.