It used to be that a rite of passage for every theater company was to stage Thornton Wilder's Our Town. Times have changed. Now that rite of passage seems to have passed on to The Rocky Horror Show. This week the NonProphet Theater Company takes its best shot. Consider yourself alerted. Or warned, as the case may be.wustl.eduI'm still on a high from the joint Black Rep/Washington University Performing Arts Department production of the epic musical Ragtime. In the interest of full disclosure,