Migrate blobs/final release from ATMOS to S3

* Point blob store to S3
* Change object id for legacy ATMOS objects
Merge pull request #80 from cloudfoundry/atmos2s3

Migrate blobs/final release from ATMOS to S3
Increase minimum password strength

[Closes #49457739]
fix nginx upload url
Bump src/cloud_controller_ng:

Bleicke and Maria Shaldibina (1):
      Increase environment limit for app in mysql

Gregg Van Hove and Tony Hansmann (1):
      nginx doesn't like trailing '/', add some better logging when renaming a staged droplet fails
Merge git://github.com/cloudfoundry/cf-release