Changes: ALIROOT-5619 Port change in makeOCDB macro for B=0 field ALIROOT-5624 Request to port two fixes concerning the ITS digitization and the composition of one ITS material ALIROOT-5625 Port fix for fitts in AliTOFAnalysisTaskCalibPass0 ALIROOT-5626 Port new generator TEPEMGEN/AliGenQEDBg for QED background generation in upgrade