Added authorization findByRefreshToken to the service and repository
levels
Added throw if there are no resources available for a given export
request. Results in 400 status code (rather than an empty feed)
Merge pull request #104 from jateeter/master

Added authorization findByRefreshToken to the service and repository
undid 400 error code on empty collection
Merge pull request #106 from jateeter/master

undid 400 error code on empty collection