new --use-iam-profile option for AWS creds selection
updating aws specs to be more explicit about config options
indentation
indentation
indentation
Merge pull request #127 from intuit/creds_from_ec2_iam_role

new --use-iam-profile option for AWS creds selection
update CHANGELOG
bumping version to 0.11.0
Merging in changes from master
moving fog calls into sdb wrapper class and adding VCR for SDB testing