category-ads: clean up and enhancement (#2909)

* sina-ads: clean up

drop some problematic/unreliable/stale rules

* iqiyi-ads: clean up

drop some problematic/unreliable/stale rules

* youku-ads: clean up

drop some problematic/unreliable/stale rules

* alibaba-ads: clean up

drop some problematic/unreliable/stale rules

* baidu-ads: clean up

drop some problematic/unreliable/stale rules

* sohu-ads: clean up

drop some problematic/unreliable/stale rules

* tencent-ads: add more domains

* google-ads: add more domains

* category-ads: reinclude meta-ads

It should be safe to be included now.

This reverts commit 24c112a6e3.

* category-ads: add more domains

* Add ads attr for more domains

data/alibaba

@@ -20,6 +20,7 @@ include:eleme
 include:teambition
 include:uc
 include:umeng
+include:youku
 
 25pp.com
 56che.com