Alternately load students.json from a URL.
Review Request #6950 — Created Feb. 14, 2015 and submitted — Latest diff uploaded
When deploying, we need to have students.json available somewhere. Rather than
committing this to git, I've stuck it into an S3 bucket. We now check to see if
it's present on the filesystem and use that, and otherwise load it from a URL.
Verified that sonar still loads correctly.