[master][3.0.3]: Youtube auto embed doesn't work 3.0 bug  #2193
[master][3.0.7] Youtube embed via URL doesn't work 3.0 bug #2657
Fix auto embed youtube
Fix auto embed youtube  (part2)
Revert autolink
Merge pull request #2656 from 810/master-fix-1

[master][3.0.3]: Youtube auto embed doesn't work 3.0 bug  #2193