temp repair QQ.But the links are redirected to a slow source with open 15kb/s
fix support for iqiyi #334

some explanation:
    1.Download work should be complete in 10 minutes because urls are generated before downloading and the key may be expired after 10 minutes.You may retry to continue downloading
add check for vip videos
fix logic
Merge branch 'jackyzy823-develop' into develop
* iQIYI: fix #334 and close #150
* QQ: fix #381
QQ: remove print debugging