Fixes bug 983807 change reprocessing exception test to only rename table, not remove
Fixes bug 983807 use a try/finally r=peterbe
More refactoring to eliminate digging into crontabber's guts
Merge pull request #2012 from selenamarie/bug983807-reprocessingjobs-test-fix

Fixes bug 983807 change reprocessing exception test to rename not remove table