Update demo version.
Update demo version.

pili-engineering/PLPlayerKit,betallcoffee/PLPlayerKit,hzwangsiyu/PLPlayerKit,hzwangsiyu/PLPlayerKit,betallcoffee/PLPlayerKit,hzwangsiyu/PLPlayerKit,pili-engineering/PLPlayerKit,pili-engineering/PLPlayerKit,hzwangsiyu/PLPlayerKit,betallcoffee/PLPlayerKit