Add methods for retrieving metadata from Rackspace and EC2 instances created by serverdensity v2
Merge branch 'master' into ec2-rackspace-v2-integration

Conflicts:
	recipes/api.rb
Merge pull request #1 from serverdensity/ec2-rackspace-v2-integration

Add methods for retrieving metadata from Rackspace and EC2 instances created by serverdensity v2