Add buckets for CMS key pairs
Add AWS credentials for CMS upload
Add AWS credentials for CMS key pairs
Add a service that creates certificate for studies
Add test to the certificate service
Add AWS credentials for Travis
Merge pull request #341 from eric-wu/develop

Add a service that creates certificate for studies
Make backfill context aware to load backfill beans dynamically
Remove backfill service interface from context
Fix Travis
Merge pull request #342 from eric-wu/develop

Fix Travis encryption
Backfill subpackage
Fix BRIDGE-278
Merge pull request #343 from eric-wu/develop

Fix Travis test failures