GRAND RAPIDS—(AP)—Young David Louis Ruge, his humiliating "ape face" a thing of the distasteful past, set out confidently Friday to look the world in the eye. The 17-year-old Chicagoan, who was led into crime in a desperate effort to rid himself of his plight, is going home happily this week-end after convalescence from plastic surgery. Dr. Ferris Smith, who performed the plastic surgery, pronounced the operation a success. He refused a fee. Ruge's plight came to public attention when he t