Show anonymous avatar by default

https://bugzilla.gnome.org/show_bug.cgi?id=720734
Fix round corner on the right side

https://bugzilla.gnome.org/show_bug.cgi?id=720734
Merge branch 'master' into develop
Show anonymous avatar by default

https://bugzilla.gnome.org/show_bug.cgi?id=720734
Fix round corner on the right side

https://bugzilla.gnome.org/show_bug.cgi?id=720734
Merge branch 'feature/use-default-avatar' into develop