Imports
- github.com/99designs/aws-vault/Godeps/_workspace/src/github.com/aws/aws-sdk-go/service/sts
- github.com/99designs/aws-vault/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws
- github.com/99designs/aws-vault/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials