linux-user-chroot v2015.1

[Colin Walters <walters verbum org>]

A new release of linux-user-chroot, a tool for *non-root* containers, in
particular build systems, is now available via this GPG-signed
git-evtag[1] tag:

https://git.gnome.org/browse/linux-user-chroot/tag/?id=v2015.1

This is the first real feature release in two years. 

In the intervening time, there has been a *lot* of interest in Linux 
containers. However, there is to my knowledge still not another project
that achieves the same targeted feature set linux-user-chroot has
around *non-root* containers. 

There are two new *opt-in* restrictions: 
  - `--mount-devapi /dev`: Create just the API mount points 
  - `--seccomp-profile-version 0`: Initial seccomp filtering 

This release also drops support for RHEL6 era systems, and seccomp is a hard requirement.

This announcement was also posted to atomic-devel:
https://lists.projectatomic.io/projectatomic-archives/atomic-devel/2015-September/msg00027.html
which has some discussion that might be interesting.

[1] https://github.com/cgwalters/git-evtag