Added 4.0 to LIBCLANG_KNOWN_LLVM_VERSIONS
Added 4.0 to LIBCLANG_KNOWN_LLVM_VERSIONS

eidheim/jucipp,cppit/jucipp,cppit/jucipp,eidheim/jucipp,cppit/jucipp,zalox/jucipp,zalox/jucipp,zalox/jucipp,eidheim/jucipp