/usr/lib/x86_64-linux-gnu/libfriends-gtk.so is in libfriends-gtk-dev 0.1.2+14.04.20131108.1-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libfriends-gtk.so.0.0.1
/usr/lib/x86_64-linux-gnu/libfriends-gtk.so.0.0.1