[Douyutv]fix channel on event
[Douyutv]fix channel on event

some channel on event will redirect to event page
exp. http://www.douyu.com/65251 redirect to http://www.douyu.com/cms/zt/RioOlympics.html#a
if channel is on event, use entering url to get room_id, and non-digital room_id will not work
xyuanmu/you-get,cnbeining/you-get,cnbeining/you-get,qzane/you-get,zmwangx/you-get,qzane/you-get,xyuanmu/you-get,zmwangx/you-get