Fixed issue #9332: Date question + debug > 1 : broken Reorder survey

LimeExpressionManager::StartSurvey was missing, so the index 'surveyls_dateformat'was not set in the $LEM->surveyOptions array.
Merge pull request #237 from gabrieljenik/patch-4

Fixed issue #9332: Date question + debug > 1 : broken Reorder survey