Remove AWS EBS root volumes from list of attached volumes to backup.
Clean up condition code to skip specific volumes from backup.  Update rspec tests accordingly.
Cosmetic change for coding standard.
Merge pull request #10 from rightscale-cookbooks/servertemplates_14_09_acu178348_skip_ebs_root_volume_for_snapshot

Servertemplates 14 09 acu178348 skip ebs root volume for snapshot