Added networkInterface, subnet resources
Merge branch 'master' into network_interface
Added create spec for subnet
added network_interface specs
updated subnet tests
Removed save from mutator, fixed specs for subnet and network interface
Update for correct delete in separate requests.
Test composite key.
Merge with master.
Merge from master.
Whitespace.
Merge branch 'master' into vpc

Conflicts:
	spec/compute_cloud_spec.rb
	spec/spec_helper.rb