disable ubunt-clang CI build (doesn't work on 14.04), use naming convention
disable ubunt-clang CI build (doesn't work on 14.04), use naming convention

ospray/OSPRay,Twinklebear/OSPRay,MengjiaoH/ospray,Twinklebear/OSPRay,MengjiaoH/ospray,wilsonCernWq/ospray,ospray/OSPRay,ospray/OSPRay,ospray/OSPRay,Twinklebear/OSPRay,wilsonCernWq/ospray,Twinklebear/OSPRay,MengjiaoH/ospray,MengjiaoH/ospray,wilsonCernWq/ospray,MengjiaoH/ospray