ets-berkeley-edu/calcentral — pull request #2484 by ctweney (2014-05-06 19:53:22+00:00)
Title: CLC-3702 (QA) Return empty string instead of nil on empty feeds, so that empt...

...ies get cached

https://jira.ets.berkeley.edu/jira/browse/CLC-3702

QA branch version of #2483