Fix - Incorrect youtube video URL

match possible long and short youtube urls throw only if none match
Fix - Incorrect youtube video URL

assume other video sites
Fix - Incorrect youtube video URL

typo
Fix - Incorrect youtube video URL

assume other video sites in error exp
Fix - Incorrect youtube video URL

global to local `pathname`
Fix - Incorrect youtube video URL

ensure id recheck only for youtube videos
Fix - Incorrect youtube video URL

cleanup
Fix - Incorrect youtube video URL

cleanup - throw if youtube but no ids found
Fix - Incorrect youtube video URL

cleanup
Fix - Incorrect youtube video URL

regex update and cleanup
Merge pull request #18 from przemyslawpluta/master

Fix - Incorrect youtube video URL