Fix incorrectly normalized Twitter intent URLs:
url: https://twitter.com/intent/user?user_id=881080941443239936
normalized_url: http://twitter.com/intent/
to
url: https://twitter.com/intent/user?user_id=881080941443239936
normalized_url: http://twitter.com/intent/user?user_id=881080941443239936/
Fixes about ~1300 incorrectly normalized urls in the production db.