use launchTasks instead of declineOffer
use launchTasks instead of declineOffer

make dpark works with Mesos-0.9

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