[lxc/lxcfs] LTS version bump 3.0.4
bugfix releases for the 3.0 LTS
https://github.com/lxc/lxc/releases/tag/lxc-3.0.4
https://github.com/lxc/lxcfs/releases/tag/lxcfs-3.0.4
could you please push it also to HBD since lxc 3.x is currently not available in that branch and provides only the outdated lxc 2.x from upstream?