VOL-38: Not all revisions in the CiviCRM 4.4.x series support "limit: 0" for API calls with unlimited results, so until 4.5 we'll use "limit: 999"
Merge pull request #209 from GinkgoFJG/VOL-38_4.4.x-only-bugfix

VOL-38: Not all revisions in the CiviCRM 4.4.x series support "limit: 0"...