WF-1704: Retrying the transaction if transaction commit fails
DASHBOARD-121: Added group by clause to GET_COMPLETED_TASK_COUNT_FOR_USER query
Fixed - CON-833
Merge branch 'K2' of github.com:bapiraju/tempo into K2
Fixed - WF-1632, Addeed New element isTaskAvailable to task metadata.
Fixed - CON-956
DASHBOARD-98: Updated APIs related to vacation summary to filter on various date combinations.