Bug#784612: [anki] Qt4's WebKit removal

[Nicolas Kuttler]

There are alpha builds with Qt5 available,

http://ankisrs.net/download/mirror/alpha/

https://anki.tenderapp.com/discussions/beta-testing/172-anki-210-alpha-1

https://anki.tenderapp.com/discussions/beta-testing/174-anki-210-alpha-2