Added iam_instance_profile_arn and iam_instance_profile_name to configuration to allow launching instances via vagrant with IAM Instance Profiles.
Merge branch 'iam-instance-profile' of github.com:jonathanq/vagrant-aws into jonathanq-iam-instance-profile

Conflicts:
	lib/vagrant-aws/action/run_instance.rb
	lib/vagrant-aws/config.rb
	spec/vagrant-aws/config_spec.rb
Merge branch 'jonathanq-iam-instance-profile'