add 'callbackFlags' to cmdlist
add 'callbackFlags' to cmdlist

leonsooi/pymel,cgrebeld/pymel,shrtcww/pymel,shrtcww/pymel,assumptionsoup/pymel,juggernate/pymel,david-lassonde-adsk/pymel,juggernate/pymel,assumptionsoup/pymel,leonsooi/pymel,david-lassonde-adsk/pymel,AtonLerin/pymel,AtonLerin/pymel