For Rockdale County High School, February was marked not only with a celebration of black history month, but also a celebration of the human spirit.On Thursday and Friday, the students of GIFTS (Girls In Focus To Succeed) honored one of their own — Raven Johnson, a RCHS student that passed away last September after a three year battle with juvenile rheumatoid arthritis — as part of the fifth annual black history show, "Stand Up," which looked at the challenges faced by blacks in the past and the challenges teens face today.Johnson was remembered for her unyielding spirit and her will. When