All 29 members of the Rangely High School Class of 2015 filled the seats in front of the main stage Sunday afternoon for their graduation/commencement exercises in the school auditorium. The graduates had a class motto of “Live each day as if it were your last,” a class flower of the red-tipped white rose, class colors of black and green and a class song of “18 Years,” by Daughtry.RANGELY I “Commencement” is defined as…