Backport Avatars1 to master
Submitted by Xavier Claessens @xclaesse
Assigned to Telepathy bugs list
Description
Avatars1 spec and TpAvatarsMixin have been merged into next branch. However Simon's review of similar TpNamesMixin (bug #14540) revealed a few issues with TpAvatarsMixin design that should be fixed as well.
To make CM porting easier, I also think it makes sense to backport it to master, and implement both Avatars and Avatars1 interfaces.