Fix few implicit references warnings.
Fix leak (bug #3148, thanks for the heads up!)
Merge branch 'master' of ssh://git.claws-mail.org/home/git/claws
Retrieve avatar service URL from address
Allow disabling federated domains
Implement support for federated avatars
Add libravatar plugin to documentation
Merge branch 'master' of ssh+git://git.claws-mail.org/home/git/claws