|#739|+Anshul|
--> order_batches - DELETED
--> programs - rename lastModifiedBy and lastModifiedDate to modifiedBy and modifiedDate
--> requisition_status_changes - renamed fields for changedBy and changedDate
--> comments - change authorId to createdBy, added modifiedBy and modifiedDate
--> report_template - use createdBy and createdDate because there's no modification.
|#739|+Anshul| Changed NOW() to CURRENT_TIMESTAMP.   Added modifiedDate/modifiedBy to orders, master_rnr_columns, program_rnr_columns, facility_types.