fix #21: the cell order of closure in Mac is different
fix #21: the cell order of closure in Mac is different

only the pre-build 64 bits Python-2.7.4 for Mac is different
with others.

dogeyes/dpark,quxiaolong1504/dpark,dogeyes/dpark,daishaowei/dpark,yhj630520/dpark,304471720/dpark,304471720/dpark,smarthomekit/dpark,dogeyes/dpark,ee08b397/dpark,daishaowei/dpark,douban/dpark,junmoa/dpark,smarthomekit/dpark,oceanjack/dpark,smarthomekit/dpark,quxiaolong1504/dpark,Mignet/dpark,mageia/dpark,douban/dpark,douban/dpark,zzl0/dpark,veritynoob/dpark,yhj630520/dpark,oceanjack/dpark,yhj630520/dpark,mageia/dpark,fe11x/dpark,304471720/dpark,windreamer/dpark,yanheven/dpark,douban/dpark,fe11x/dpark,windreamer/dpark,douban/dpark,junmoa/dpark,zzl0/dpark,windreamer/dpark,yanheven/dpark,veritynoob/dpark,windreamer/dpark,Mignet/dpark,veritynoob/dpark