Full-service digital firm Ascedia Inc. has completed its acquisition of Roll Mobile, the company announced Thursday. Principals with Milwaukee-based Ascedia were shareholders in Roll Mobile, also of Milwaukee, since the mobile solutions group made its 2009 debut. Roll Mobile clients include Master Lock Co., the Wisconsin Department of Tourism, Aurora Health Care, WYMS-FM (88.9) "Radio Milwaukee" and Sub-Zero/Wolf. “As clients felt compelled to provide access to digital content over mobile devices,…