Comment 2 for bug 1049127

Part of the change needs to land in unity and libunity, but that would not be used without the gwibber lens. So the easy way to back out the change would be to downgrade the lens version. The change to the lens itself is minimal, most of the code is in adding a new preview type to unity.

Email to ubuntu-doc:
https://lists.ubuntu.com/archives/ubuntu-doc/2012-September/016849.html